<ARTICLE> 5
<RESTATED> 
<MULTIPLIER> 1,000
       
                                                  
<PERIOD-TYPE>                   6-MOS                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997       DEC-31-1996
<PERIOD-START>                             JAN-01-1997       JAN-01-1996
<PERIOD-END>                               JUN-30-1997       JUN-30-1996
<CASH>                                           7,787                 0
<SECURITIES>                                         0                 0
<RECEIVABLES>                                   11,657                 0
<ALLOWANCES>                                       480                 0
<INVENTORY>                                      5,735                 0
<CURRENT-ASSETS>                                26,466                 0
<PP&E>                                          13,505                 0
<DEPRECIATION>                                   6,943                 0
<TOTAL-ASSETS>                                  47,546                 0
<CURRENT-LIABILITIES>                           13,148                 0
<BONDS>                                              0                 0
<PREFERRED-MANDATORY>                                0                 0
<PREFERRED>                                          0                 0
<COMMON>                                        19,917                 0
<OTHER-SE>                                       (528)                 0
<TOTAL-LIABILITY-AND-EQUITY>                    47,546                 0
<SALES>                                         36,098            28,180
<TOTAL-REVENUES>                                36,098            28,180
<CGS>                                           22,580            17,870
<TOTAL-COSTS>                                   30,677            23,907
<OTHER-EXPENSES>                                     0                 0
<LOSS-PROVISION>                                     0                 0
<INTEREST-EXPENSE>                                 147               828
<INCOME-PRETAX>                                  5,274             3,445
<INCOME-TAX>                                     2,049             1,322
<INCOME-CONTINUING>                              3,225             1,991
<DISCONTINUED>                                       0                 0
<EXTRAORDINARY>                                      0                 0
<CHANGES>                                            0                 0
<NET-INCOME>                                     3,225             1,991
<EPS-PRIMARY>                                     0.39<F1>          0.47<F1>
<EPS-DILUTED>                                     0.38<F1>          0.47<F1>
<FN>
<F1>
This information has been prepared in accordance with SFAS No. 128, and basic 
and diluted EPS have been entered in place of primary and fully diluted, 
respectively.
</FN>