WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<RESTATED>    
<MULTIPLIER> 1,000
       
<S>                             <C>                     <C>
<PERIOD-TYPE>                   9-MOS                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1998             DEC-31-1997
<PERIOD-START>                             JAN-01-1998             JAN-01-1997
<PERIOD-END>                               SEP-30-1998             SEP-30-1997
<CASH>                                          12,379                       0
<SECURITIES>                                         0                       0
<RECEIVABLES>                                   14,058                       0
<ALLOWANCES>                                     (507)                       0
<INVENTORY>                                      9,133                       0
<CURRENT-ASSETS>                                 2,027                       0
<PP&E>                                          13,469                       0
<DEPRECIATION>                                       0                       0
<TOTAL-ASSETS>                                  59,886                       0
<CURRENT-LIABILITIES>                           17,177                       0
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                        20,135                       0
<OTHER-SE>                                       (290)                       0
<TOTAL-LIABILITY-AND-EQUITY>                         0                       0
<SALES>                                         58,116                  52,140
<TOTAL-REVENUES>                                58,116                  52,140
<CGS>                                           37,372                  33,036
<TOTAL-COSTS>                                   50,110                  44,644
<OTHER-EXPENSES>                                     0                       0
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                               (193)                     239
<INCOME-PRETAX>                                  8,200                   7,257
<INCOME-TAX>                                     2,234                   2,818
<INCOME-CONTINUING>                              5,966                   4,439
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                     5,966                   4,439
<EPS-PRIMARY>                                     0.72<F1>                0.54<F1>
<EPS-DILUTED>                                     0.68<F1>                0.52<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>
        

</TABLE>