<ARTICLE> 5 <MULTIPLIER> 1 <CURRENCY> U.S. DOLLARS <PERIOD-TYPE> YEAR <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> DEC-31-1999 <EXCHANGE-RATE> 1 <CASH> 36,361,621 <SECURITIES> 0 <RECEIVABLES> 3,585,824 <ALLOWANCES> 65,000 <INVENTORY> 6,876,002 <CURRENT-ASSETS> 48,626,404 <PP&E> 14,346,200 <DEPRECIATION> 9,370,156 <TOTAL-ASSETS> 53,727,504 <CURRENT-LIABILITIES> 5,317,132 <BONDS> 0 <PREFERRED-MANDATORY> 65,382 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 48,380,299 <TOTAL-LIABILITY-AND-EQUITY> 53,787,504 <SALES> 15,345,787 <TOTAL-REVENUES> 16,603,022 <CGS> 11,885,547 <TOTAL-COSTS> 12,328,625 <OTHER-EXPENSES> 3,437,012 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 43,280 <INCOME-PRETAX> 837,385 <INCOME-TAX> 10,256 <INCOME-CONTINUING> 827,129 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 827,129 <EPS-BASIC> 0.11 <EPS-DILUTED> 0.11