| **FAIR VALUE MEASUREMENTS (Details 1) (USD $)In Thousands**                                      | 9 Months Ended |         |
|--------------------------------------------------------------------------------------------------|----------------|---------|
||
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** | Â              | Â       |
| Restricted trust, included in Other noncurrent assets                                            | $ 1,249        | $ 1,258 |
| TransWeb contingent earn-out, included in Other long-term liabilities                            | 1,089          | Â       |
| Change in fair value of TransWeb contingent earn-out                                             | 71             | Â       |
| Level 1 [Member]                                                                                 | Â              | Â       |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** | Â              | Â       |
| Restricted trust, included in Other noncurrent assets                                            | 1,249          | 1,258   |
| TransWeb contingent earn-out, included in Other long-term liabilities                            | 0              | Â       |
| Level 1 [Member] | Mutual fund investments - equities [Member]                                   | Â              | Â       |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** | Â              | Â       |
| Restricted trust, included in Other noncurrent assets                                            | 734            | 879     |
| Level 1 [Member] | Mutual fund investments - bonds [Member]                                      | Â              | Â       |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** | Â              | Â       |
| Restricted trust, included in Other noncurrent assets                                            | 502            | 357     |
| Level 1 [Member] | Cash and Cash Equivalents [Member]                                            | Â              | Â       |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** | Â              | Â       |
| Restricted trust, included in Other noncurrent assets                                            | 13             | 22      |
| Level 2 [Member]                                                                                 | Â              | Â       |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** | Â              | Â       |
| Restricted trust, included in Other noncurrent assets                                            | 0              | 0       |
| TransWeb contingent earn-out, included in Other long-term liabilities                            | 0              | Â       |
| Level 2 [Member] | Mutual fund investments - equities [Member]                                   | Â              | Â       |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** | Â              | Â       |
| Restricted trust, included in Other noncurrent assets                                            | 0              | 0       |
| Level 2 [Member] | Mutual fund investments - bonds [Member]                                      | Â              | Â       |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** | Â              | Â       |
| Restricted trust, included in Other noncurrent assets                                            | 0              | 0       |
| Level 2 [Member] | Cash and Cash Equivalents [Member]                                            | Â              | Â       |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** | Â              | Â       |
| Restricted trust, included in Other noncurrent assets                                            | 0              | 0       |
| Level 3 [Member]                                                                                 | Â              | Â       |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** | Â              | Â       |
| Restricted trust, included in Other noncurrent assets                                            | 0              | 0       |
| TransWeb contingent earn-out, included in Other long-term liabilities                            | 1,089          | Â       |
| Level 3 [Member] | Mutual fund investments - equities [Member]                                   | Â              | Â       |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** | Â              | Â       |
| Restricted trust, included in Other noncurrent assets                                            | 0              | 0       |
| Level 3 [Member] | Mutual fund investments - bonds [Member]                                      | Â              | Â       |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** | Â              | Â       |
| Restricted trust, included in Other noncurrent assets                                            | 0              | 0       |
| Level 3 [Member] | Cash and Cash Equivalents [Member]                                            | Â              | Â       |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** | Â              | Â       |
| Restricted trust, included in Other noncurrent assets                                            | 0              | 0       |
| Mutual fund investments - equities [Member]                                                      | Â              | Â       |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** | Â              | Â       |
| Restricted trust, included in Other noncurrent assets                                            | 734            | 879     |
| Mutual fund investments - bonds [Member]                                                         | Â              | Â       |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** | Â              | Â       |
| Restricted trust, included in Other noncurrent assets                                            | 502            | 357     |
| Cash and Cash Equivalents [Member]                                                               | Â              | Â       |
| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]** | Â              | Â       |
| Restricted trust, included in Other noncurrent assets                                            | $ 13           | $ 22    |

| X                                                                                                                                                                                                                                                                                                                                                                                                                              |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents total gains or losses for the period (realized and unrealized), arising from liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in earnings or resulted in a change in net asset value.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -Subparagraph c(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This element represents the fair value of liabilities categorized as other which are not in and of themselves material enough to require separate disclosure.
+ Details**Name:**us-gaap_OtherLiabilitiesFairValueDisclosure**Namespace Prefix:**us-gaap**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Trading Securities which consist of all investments in certain debt and equity securities that are bought and held principally for the purpose of selling them in the near term (thus held for only a short period of time) or for which an entity has elected the fair value option. Trading generally reflects active and frequent buying and selling, and trading securities are generally used with the objective of generating profits on short-term differences in price, but this category of investments may also include items which are not intended to be sold in the near term or for which the fair value option has been elected.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 12 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6379932&loc=d3e22054-111558Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Trading Securities -URI http://asc.fasb.org/extlink&oid=6526789
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