|   |   |                                                                                    |
|--------|--------|-----------------------------------------------------------------------------------------|
| þ |   | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |

|   |   |                                                                                     |
|--------|--------|------------------------------------------------------------------------------------------|
| o      |   | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |

| Delaware                                                       | 75-1225149                        |
|----------------------------------------------------------------|-----------------------------------|
| (State of Incorporation)                                       | (IRS Employer Identification No.) |
|                                                           |                              |
| 905 E. Walnut, Garland, Texas                                  | 75040                             |
| (Address of Principal Executive Office)                        | (Zip Code)                        |
|                                                           |                              |
|  Registrant’s Telephone Number, including Area Code |  (972) 272-3571              |

| Large accelerated filer  o                | Accelerated filer  o   |
|------------------------------------------------|-----------------------------|
| Non-accelerated filer    o | Smaller reporting company x |

----

----

|                                                                                                                                                                                                                                                                                             |   | (Unaudited) |        |   |     |   |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-------------|-------------|--------|----------|--------|
| CURRENT ASSETS                                                                                                                                                                                                                                                                                   |   | 08/28/10    |        |   | 11/30/09 |   |
|                                                                                                                                                                                                                                                                                             |   |        |        |   |     |   |
| Cash and cash equivalents                                                                                                                                                                                                                                                                        |   | $           | 7,399       |   |     | $      | 6,802 |   |
|         Short-term investment                                                                                                                                                                                                                            |   |        | 1,000       |   |     |   | 1,000 |   |
|         Receivables                                                                                                                                                                                                                                      |   |        | 3,772       |   |     |   | 2,364 |   |
| Inventories:                                                                                                                                                                                                                                                                                     |   |        |        |   |     |   |   |   |
| Raw materials                                                                                                                                                                                                                                                                                    |   |        | 2,429       |   |     |   | 2,785 |   |
| Work-in process                                                                                                                                                                                                                                                                                  |   |        | 2,778       |   |     |   | 2,728 |   |
| Total inventories                                                                                                                                                                                                                                                                                |   |        | 5,207       |   |     |   | 5,513 |   |
| Prepaid expenses and other current assets                                                                                                                                                                                                                                                        |   |        | 262         |   |     |   | 130 |   |
| Deferred income tax                                                                                                                                                                                                                                                                              |   |        | 1,069       |   |     |   | 1,069 |   |
|                              Total current assets                                                                                               |   |        | 18,709      |   |     |   | 16,878 |   |
|                                                                                                                                                                                                                                                                                             |   |        |        |   |     |   |   |   |
| PROPERTY, PLANT AND EQUIPMENT:                                                                                                                                                                                                                                                                   |   |        |        |   |     |   |   |   |
| Land                                                                                                                                                                                                                                                                                             |   |        | 80          |   |     |   | 80 |   |
| Buildings                                                                                                                                                                                                                                                                                        |   |        | 498         |   |     |   | 498 |   |
| Facility improvements                                                                                                                                                                                                                                                                            |   |        | 882         |   |     |   | 882 |   |
| Machinery and equipment                                                                                                                                                                                                                                                                          |   |        | 6,917       |   |     |   | 6,571 |   |
| Furniture and fixtures                                                                                                                                                                                                                                                                           |   |        | 632         |   |     |   | 623 |   |
|                       Total property, plant, and equipment                                                                                                                         |   |        | 9,009       |   |     |   | 8,654 |   |
| Less accumulated depreciation                                                                                                                                                                                                                                                                    |   |        | (7,523      | )      |     |   | (7,324 | ) |
|                                      Net property, plant, and equipment                                 |   |        |  1,486 |   |     |   | 1,330 |   |
|                                        Total assets                                           |   | $           | 20,195      |   |     | $      | 18,208 |   |
|                                                                                                                                                                                                                                                                                             |   |        |        |   |     |   |   |   |
| LIABILITIES AND SHAREHOLDERS’ EQUITY                                                                                                                                                                                                                                                       |   |        |        |   |     |   |   |   |
|                                                                                                                                                                                                                                                                                             |   |        |        |   |     |   |   |   |
| CURRENT LIABILITIES:                                                                                                                                                                                                                                                                             |   |        |        |   |     |   |   |   |
| Accounts payable                                                                                                                                                                                                                                                                                 |   | $           | 1,069       |   |     | $      | 713 |   |
| Accrued compensation                                                                                                                                                                                                                                                                             |   |        | 642         |   |     |   | 481 |   |
| Other accrued liabilities                                                                                                                                                                                                                                                                        |   |        | 464         |   |     |   | 193 |   |
|         Deferred revenue                                                                                                                                                                                                                                 |   |        | 577         |   |     |   | 1,524 |   |
| Income taxes payable                                                                                                                                                                                                                                                                             |   |        | 399         |   |     |   | 45 |   |
|                         Total current liabilities                                                                                                                        |   |        | 3,151       |   |     |   | 2,956 |   |
|                                                                                                                                                                                                                                                                                             |   |        |        |   |     |   |   |   |
| DEFERRED INCOME TAXES                                                                                                                                                                                                                                                                            |   |        | 218         |   |     |   | 218 |   |
|                                                                                                                                                                                                                                                                                             |   |        |        |   |     |   |   |   |
| SHAREHOLDERS’ EQUITY                                                                                                                                                                                                                                                                       |   |        |        |   |     |   |   |   |
| Common stock, ($.10 par value), authorized 10,000,000 shares,   3,078,315 issued and 2,578,315 outstanding at August 28, 2010           and November 30, 2009                                                              |   |        | 308         |   |     |   | 308 |   |
| Paid-in capital                                                                                                                                                                                                                                                                                  |   |        | 885         |   |     |   | 885 |   |
|         Treasury stock, 500,000 shares, at cost                                                                                                                                                                                                          |   |        | (1,250      | )      |     |   | (1,250 | ) |
| Retained earnings                                                                                                                                                                                                                                                                                |   |        | 16,883      |   |     |   | 15,091 |   |
|                                                                                                                                                                                                                                                                                             |   |        |        |   |     |   |   |   |
|                                 Total shareholders’ equity                                                                 |   |        | 16,826      |   |     |   | 15,034 |   |
|                                                                                                                                                                                                                                                                                             |   |        |        |   |     |   |   |   |
|                                         Total liabilities and shareholders’ equity |   | $           | 20,195      |   |     | $      | 18,208 |   |

----

|                                                                                                                                                                                                                                            |   |    For the three months ended |      |   |    For the nine months ended |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|-----------------------------------------|-----------|--------|----------------------------------------|
|                                                                                                                                                                                                                                            |   | 08/28/10                                |      |   | 08/29/09                               |   |   | 08/28/10 |   |   | 08/29/09 |
|                                                                                                                                                                                                                                            |   |                                    |      |   |                                   |   |   |   |   |   |   |
|                                                                                                                                                                                                                                            |   |                                    |      |   |                                   |   |   |   |   |   |   |
| NET SALES                                                                                                                                                                                                                                       |   | $                                       | 7,142     |   |                                   | $ | 3,812 |   |   | $ | 17,506 |   |   | $ | 13,299 |   |
|                                                                                                                                                                                                                                            |   |                                    |      |   |                                   |   |   |   |   |   |   |   |   |   |   |   |   |
| COST AND EXPENSES:                                                                                                                                                                                                                              |   |                                    |      |   |                                   |   |   |   |   |   |   |   |   |   |   |   |   |
|                                                                                                                                                                                                                                            |   |                                    |      |   |                                   |   |   |   |   |   |   |   |   |   |   |   |   |
|     Cost of goods sold                                                                                                                                                                                                      |   |                                    | (4,639    | )      |                                   |   | (2,763 | ) |   |   | (11,074 | ) |   |   | (9,469 | ) |
|                                                                                                                                                                                                                                            |   |                                    |      |   |                                   |   |   |   |   |   |   |   |   |   |   |   |   |
|     Research and development                                                                                                                                                                                                |   |                                    | (93       | )      |                                   |   | (165 | ) |   |   | (356 | ) |   |   | (400 | ) |
|                                                                                                                                                                                                                                            |   |                                    |      |   |                                   |   |   |   |   |   |   |   |   |   |   |   |   |
|     Selling, general & administrative expenses                                                                                                                                                                          |   |                                    | (1,036    | )      |                                   |   |  (872 | ) |   |   | (2,975 | ) |   |   | (2,565 | ) |
|                                                                                                                                                                                                                                            |   |                                    |      |   |                                   |   |   |   |   |   |   |   |   |   |   |   |   |
|                                     Total cost and expenses |   |                                    | (5,768    | )      |                                   |   | (3,800 | ) |   |   | (14,405 | ) |   |   | (12,434 | ) |
|                                                                                                                                                                                                                                            |   |                                    |      |   |                                   |   |   |   |   |   |   |   |   |   |   |   |   |
| OPERATING INCOME BEFORE INTEREST           AND INCOME TAXES                                                                                                                              |   |                                    | 1,374     |   |                                   |   | 12 |   |   |   | 3,101 |   |   |   | 865 |   |
|                                                                                                                                                                                                                                            |   |                                    |      |   |                                   |   |   |   |   |   |   |   |   |   |   |   |   |
|     Interest and other income                                                                                                                                                                                               |   |                                    | 14        |   |                                   |   | 36 |   |   |   | 102 |   |   |   | 58 |   |
|                                                                                                                                                                                                                                            |   |                                    |      |   |                                   |   |   |   |   |   |   |   |   |   |   |   |   |
| INCOME BEFORE TAXES                                                                                                                                                                                                                             |   |                                    | 1,388     |   |                                   |   | 48 |   |   |   | 3,203 |   |   |   | 923 |   |
|                                                                                                                                                                                                                                            |   |                                    |      |   |                                   |   |   |   |   |   |   |   |   |   |   |   |   |
|     Provision for taxes                                                                                                                                                                                                     |   |                                    | (500      | )      |                                   |   | (17 | ) |   |   | (1,153 | ) |   |   | (332 | ) |
|                                                                                                                                                                                                                                            |   |                                    |      |   |                                   |   |   |   |   |   |   |   |   |   |   |   |   |
| NET INCOME                                                                                                                                                                                                                                      |   | $                                       | 888       |   |                                   | $ | 31 |   |   | $ | 2,050 |   |   | $ | 591 |   |
| NET INCOME PER SHARE, BASIC AND DILUTED                                                                                                                                                                                                         |   | $                                       | 0.34      |   |                                   | $ | 0.01 |   |   | $ | 0.80 |   |   | $ | 0.23 |   |
|                                                                                                                                                                                                                                            |   |                                    |      |   |                                   |   |   |   |   |   |   |   |   |   |   |   |   |
| DIVIDENDS PER SHARE                                                                                                                                                                                                                             |   | $                                       | 0.00      |   |                                   | $ | 0.00 |   |   | $ | 0.10 |   |   | $ | 0.10 |   |
|                                                                                                                                                                                                                                            |   |                                    |      |   |                                   |   |   |   |   |   |   |   |   |   |   |   |   |
| WEIGHTED AVERAGE OF SHARES, Basic and diluted                                                                                                                                                                                                   |   |                                    | 2,578,315 |   |                                   |   | 2,578,315 |   |   |   | 2,578,315 |   |   |   | 2,578,315 |   |

----

|                                                                                                                                                                                                                                              |   | For the nine months ended |        |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|--------------------------------|-------------|
|                                                                                                                                                                                                                                              |   | 8/28/10                        |        |   | 8/29/09 |   |
| CASH FLOWS FROM OPERATING ACTIVITIES:                                                                                                                                                                                                             |   |                           |        |   |   |   |
| Net income                                                                                                                                                                                                                                        |   | $                              | 2,050       |   |   | $ | 591 |   |
| Adjustments to reconcile net income to                                                                                                                                                                                                            |   |                           |        |   |   |   |   |   |
|           net cash provided by operating activities:                                                                                                                                            |   |                           |        |   |   |   |   |   |
|         Depreciation and amortization                                                                                                                                                                     |   |                           | 199         |   |   |   | 192 |   |
|         Changes in current assets and liabilities:                                                                                                                                                        |   |                           |        |   |   |   |   |   |
|     Accounts receivable                                                                                                                                                                                                       |   |                           | (1,408      | ) |   |   | 266 |   |
|     Inventories                                                                                                                                                                                                               |   |                           | 306         |   |   |   | (617 | ) |
|     Prepaid expense and other current assets                                                                                                                                                                                  |   |                           | (132        | ) |   |   | 46 |   |
|     Deferred revenue                                                                                                                                                                                                          |   |                           | (947        | ) |   |   | 977 |   |
|     Accounts payable                                                                                                                                                                                                          |   |                           | 356         |   |   |   | (227 | ) |
|     Accrued compensation                                                                                                                                                                                                      |   |                           | 161         |   |   |   | (249 | ) |
|     Other accrued liabilities                                                                                                                                                                                                 |   |                           | 271         |   |   |   | (143 | ) |
|     Income taxes payable                                                                                                                                                                                                      |   |                           |  354   |   |   |   |  (12 | ) |
|                                                                                                                                                                                                                                              |   |                           |        |   |   |   |   |   |
|                                  Net cash provided by operating activities   |   |                           |  1,210 |   |   |   |  824 |   |
|                                                                                                                                                                                                                                              |   |                           |        |   |   |   |   |   |
| CASH FLOWS FROM INVESTING ACTIVITIES:                                                                                                                                                                                                             |   |                           |        |   |   |   |   |   |
|       Purchases of investments                                                                                                                                                                                      |   |                           | 0           |   |   |   | (1,000 | ) |
|       Additions to property, plant and equipment                                                                                                                                                                    |   |                           | (355        | ) |   |   | (176 | ) |
|                                                                                                                                                                                                                                              |   |                           |        |   |   |   |   |   |
|                                   Net cash used in investing activities |   |                           |  (355  | ) |   |   |  (1,176 | ) |
|                                                                                                                                                                                                                                              |   |                           |        |   |   |   |   |   |
| CASH FLOWS FROM FINANCING ACTIVITIES                                                                                                                                                                                                              |   |                           |        |   |   |   |   |   |
|          Cash dividend                                                                                                                                                                               |   |                           |  (258  | ) |   |   |  (258 | ) |
|                                                                                                                                                                                                                                              |   |                           |        |   |   |   |   |   |
|                                   Net cash used in financing activities |   |                           | (258        | ) |   |   | (258 | ) |
|                                                                                                                                                                                                                                              |   |                           |        |   |   |   |   |   |
| Net change in cash and cash equivalents                                                                                                                                                                                                           |   |                           | 597         |   |   |   | (610 | ) |
|                                                                                                                                                                                                                                              |   |                           |        |   |   |   |   |   |
| Cash and Cash Equivalents at beginning of period                                                                                                                                                                                                  |   |                           | 6,802       |   |   |   | 6,522 |   |
|                                                                                                                                                                                                                                              |   |                           |        |   |   |   |   |   |
| Cash and Cash Equivalents at end of period                                                                                                                                                                                                        |   | $                              | 7,399       |   |   | $ | 5,912 |   |
|                                                                                                                                                                                                                                              |   |                           |        |   |   |   |   |   |
|                                                                                                                                                                                                                                              |   |                           |        |   |   |   |   |   |
| Supplemental Cash Flow Disclosure                                                                                                                                                                                                                 |   |                           |        |   |   |   |   |   |
|                                                                                                                                                                                                                                              |   |                           |        |   |   |   |   |   |
| Cash paid for income taxes                                                                                                                                                                                                              |   | $                         | 799         |   |   | $  |  345 |   |

----

----

| Buildings               | 15   |
|-------------------------|------|
| Facility improvements   | 8-15 |
| Machinery and equipment | 5-10 |
| Furniture and fixtures  | 5-8  |

----

|                                                                                                                                                                                                                                            |   | Three months ended |   |   | Nine months ended |   |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|--------------------|--------|--------|-------------------|--------|
|                                                                                                                                                                                                                                            |   | 8/28/2010          |   |   | 8/29/2009         |   |   | 8/28/2010 |   |   | 8/29/2009 |   |
| NET SALES                                                                                                                                                                                                                                       |   |               | 100.0  | %      |              |   | 100.0 | % |   |   | 100.0 | % |   |   | 100.0 | % |
|                                                                                                                                                                                                                                            |   |               |   |   |              |   |   |   |   |   |   |   |   |   |   |   |
| COST AND EXPENSES:                                                                                                                                                                                                                              |   |               |   |   |              |   |   |   |   |   |   |   |   |   |   |   |
|     Cost of Goods Sold                                                                                                                                                                                                      |   |               | 65.0   | %      |              |   | 72.5 | % |   |   | 63.3 | % |   |   | 71.2 | % |
|     Research and development                                                                                                                                                                                                |   |               | 1.3    | %      |              |   | 4.3 | % |   |   | 2.0 | % |   |   | 3.0 | % |
|     Selling, general & administrative expenses                                                                                                                                                                          |   |               | 14.5   | %      |              |   | 22.9 | % |   |   | 17.0 | % |   |   | 19.3 | % |
|                                     Total cost and expenses |   |               | 80.8   | %      |              |   | 99.7 | % |   |   | 82.3 | % |   |   | 93.5 | % |
|                                                                                                                                                                                                                                            |   |               |   |   |              |   |   |   |   |   |   |   |   |   |   |   |
| OPERATING INCOME BEFORE INTEREST                                                                                                                                                                                                                |   |               |   |   |              |   |   |   |   |   |   |   |   |   |   |   |
|            AND INCOME TAXES                                                                                                                                                              |   |               | 19.2   | %      |              |   | 0.3 | % |   |   | 17.7 | % |   |   | 6.5 | % |
|                                                                                                                                                                                                                                            |   |               |   |   |              |   |   |   |   |   |   |   |   |   |   |   |
|     Interest and other income                                                                                                                                                                                               |   |               | 0.2    | %      |              |   | 0.9 | % |   |   | 0.6 | % |   |   | 0.4 | % |
|                                                                                                                                                                                                                                            |   |               |   |   |              |   |   |   |   |   |   |   |   |   |   |   |
| INCOME BEFORE TAXES                                                                                                                                                                                                                             |   |               | 19.4   | %      |              |   | 1.2 | % |   |   | 18.3 | % |   |   | 6.9 | % |
|                                                                                                                                                                                                                                            |   |               |   |   |              |   |   |   |   |   |   |   |   |   |   |   |
|     Provision for taxes                                                                                                                                                                                                     |   |               | 7.0    | %      |              |   | 0.4 | % |   |   | 6.6 | % |   |   | 2.5 | % |
|                                                                                                                                                                                                                                            |   |               |   |   |              |   |   |   |   |   |   |   |   |   |   |   |
| NET INCOME                                                                                                                                                                                                                                      |   |               | 12.4   | %      |              |   | 0.8 | % |   |   | 11.7 | % |   |   | 4.4 | % |

----

----

| (a)   | Evaluation of disclosure controls and procedures. |
|-----------------|---------------------------------------------------|

| (b)   | Changes in internal controls. |
|-----------------|-------------------------------|

| ITEM 1. | LEGAL PROCEEDINGS                                                                                                                                                                                                                   |
|---------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|    |                                                                                                                                                                                                                                |
|    | The Company is not involved in any material current or pending legal proceedings.                                                                                                                                                   |
|    |                                                                                                                                                                                                                                |
| ITEM 1A | RISK FACTORS                                                                                                                                                                                                                        |
|    |                                                                                                                                                                                                                                |
|    | Information about risk factors for the three months ended August 28, 2010 does not differ materially from that set forth in Part I, Item 1A, of our Annual Report on Form 10-K for the year ended November 30, 2009. |
|    |                                                                                                                                                                                                                                |
| ITEM 2. | UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS                                                                                                                                                                         |
|    |                                                                                                                                                                                                                                |
|    | None                                                                                                                                                                                                                                |
|    |                                                                                                                                                                                                                                |
|    |                                                                                                                                                                                                                                |
| ITEM 3. | DEFAULTS UPON SENIOR SECURITIES                                                                                                                                                                                                     |
|    |                                                                                                                                                                                                                                |
|    | None                                                                                                                                                                                                                                |
|    |                                                                                                                                                                                                                                |
| ITEM 4. | RESERVED                                                                                                                                                                                                                            |

----

| ITEM 5. | OTHER INFORMATION |
|---------|-------------------|
|    |              |
|    | None              |
|    |              |
| ITEM 6. | EXHIBITS          |
|    |              |   |
|    | (a)               | Exhibits |
|    |              |   |
|    | 31.1              | Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes- Oxley Act of 2002 |
|    | 31.2              | Certification of Chief Accounting Officer pursuant to Section 302 of the  Sarbanes- Oxley Act of 2002 |
|    | 32.1              | Certification of Chief Executive Officer pursuant to 18 U.S.C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley act of 2002 |
|    | 32.2              | Certification of Chief Accounting Officer pursuant to 18 U. S. C. section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley act of 2002. |

| SIGNATURES |   |
|------------|--------|

|   | Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned duly authorized. |
|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   |   |                    |   |
|--------|--------|-------------------------|--------|
| Date   | By:    | /s/ Mark King      |   |
|   |   | Mark King               |   |
|   |   | Chief Executive Officer |   |
|   |   |                    |   |

|   |   |                    |   |
|--------|--------|-------------------------|--------|
| Date   | By:    | /s/ Patrick Cefalu |   |
|   |   | Patrick Cefalu          |   |
|   |   | Chief Financial Officer |   |
|   |   |                    |   |

----