<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 7,055,000
<SECURITIES> 593,000
<RECEIVABLES> 2,403,000
<ALLOWANCES> 0
<INVENTORY> 3,444,000
<CURRENT-ASSETS> 14,965,000
<PP&E> 9,620,000
<DEPRECIATION> 7,307,000
<TOTAL-ASSETS> 19,040,000
<CURRENT-LIABILITIES> 3,340,000
<BONDS> 0
0
0
<COMMON> 127,000
<OTHER-SE> 12,990,000
<TOTAL-LIABILITY-AND-EQUITY> 19,040,000
<SALES> 9,518,000
<TOTAL-REVENUES> 0
<CGS> 6,090,000
<TOTAL-COSTS> 2,116,000
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 48,000
<INCOME-PRETAX> 1,551,000
<INCOME-TAX> 528,000
<INCOME-CONTINUING> 0
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 1,023,000
<EPS-BASIC> 0.08
<EPS-DILUTED> 0.08
</TABLE>