<TABLE> <S> <C>

<ARTICLE>                     5
<MULTIPLIER>                  1,000
       
<S>                                              <C>             <C>               <C>               <C>
<PERIOD-TYPE>                                    12-MOS          3-MOS             3-MOS             3-MOS
<FISCAL-YEAR-END>                                SEP-30-1997     SEP-30-1997       SEP-30-1997       SEP-30-1997
<PERIOD-START>                                   OCT-01-1996     APR-01-1997       JAN-01-1997       OCT-01-1996
<PERIOD-END>                                     SEP-30-1997     JUN-30-1997       MAR-31-1997       DEC-31-1996
<CASH>                                                 9,839           9,153           11,239             7,097
<SECURITIES>                                           6,089           5,964            3,478             7,010
<RECEIVABLES>                                          4,155           3,956            5,031             5,024
<ALLOWANCES>                                             840             606              493               469
<INVENTORY>                                            7,369           7,190            6,933             6,722
<CURRENT-ASSETS>                                      27,239          26,213           26,854            26,090
<PP&E>                                                19,618          18,822           17,890            17,177
<DEPRECIATION>                                        10,388           9,823            9,319             8,848
<TOTAL-ASSETS>                                        37,091          35,769           36,051            35,055
<CURRENT-LIABILITIES>                                  8,952           8,259            9,785             9,020
<BONDS>                                                3,336           3,249            2,183             2,033
<PREFERRED-MANDATORY>                                      0               0                0                 0
<PREFERRED>                                                0               0                0                 0
<COMMON>                                                  90              90               88                88
<OTHER-SE>                                            24,713          24,171           23,995            23,914
<TOTAL-LIABILITY-AND-EQUITY>                          37,091          35,769           36,051            35,055
<SALES>                                               34,091           8,886            7,822             7,687
<TOTAL-REVENUES>                                      35,388           9,195            8,494             8,001
<CGS>                                                 20,111           5,223            4,703             4,810
<TOTAL-COSTS>                                         20,111           5,223            4,703             4,810
<OTHER-EXPENSES>                                      15,100           3,983            3,830             3,389
<LOSS-PROVISION>                                           0               0                0                 0
<INTEREST-EXPENSE>                                       759             122              128                62
<INCOME-PRETAX>                                          647             112               77              (111)
<INCOME-TAX>                                              81              14               10               (14)
<INCOME-CONTINUING>                                      566              98               67               (97)
<DISCONTINUED>                                             0               0                0                 0
<EXTRAORDINARY>                                            0               0                0                 0
<CHANGES>                                                  0               0                0                 0
<NET-INCOME>                                             566              98               67               (97)
<EPS-PRIMARY>                                           0.06            0.01             0.01             (0.01)
<EPS-DILUTED>                                           0.06            0.01             0.01             (0.01)
        

</TABLE>