<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 12-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> DEC-31-1997 <CASH> 3,656 <SECURITIES> 9,595 <RECEIVABLES> 10,638 <ALLOWANCES> 413 <INVENTORY> 7,138 <CURRENT-ASSETS> 33,783 <PP&E> 5,188 <DEPRECIATION> 3,001 <TOTAL-ASSETS> 36,243 <CURRENT-LIABILITIES> 5,147 <BONDS> 2,568 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 13,151 <OTHER-SE> 15,377 <TOTAL-LIABILITY-AND-EQUITY> 36,243 <SALES> 32,767 <TOTAL-REVENUES> 36,657 <CGS> 12,092 <TOTAL-COSTS> 15,724 <OTHER-EXPENSES> 11,801 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 110 <INCOME-PRETAX> 9,382 <INCOME-TAX> 3,625 <INCOME-CONTINUING> 5,757 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 5,757 <EPS-PRIMARY> 0.69 <EPS-DILUTED> 0.65