<TABLE> <S> <C>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 4,600
<SECURITIES> 44,091
<RECEIVABLES> 6,997
<ALLOWANCES> (437)
<INVENTORY> 888
<CURRENT-ASSETS> 57,745
<PP&E> 39,284
<DEPRECIATION> (14,903)
<TOTAL-ASSETS> 83,781
<CURRENT-LIABILITIES> 6,775
<BONDS> 0
0
0
<COMMON> 887
<OTHER-SE> 76,119
<TOTAL-LIABILITY-AND-EQUITY> 83,781
<SALES> 27,872
<TOTAL-REVENUES> 27,872
<CGS> 11,799
<TOTAL-COSTS> 19,593
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> 9,272
<INCOME-TAX> 3,430
<INCOME-CONTINUING> 5,842
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 5,842
<EPS-BASIC> .71
<EPS-DILUTED> .66
</TABLE>