<ARTICLE> 5 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-2000 <PERIOD-START> JAN-01-2000 <PERIOD-END> MAR-31-2000 <CASH> 7,848,729 <SECURITIES> 0 <RECEIVABLES> 3,519,476 <ALLOWANCES> 107,063 <INVENTORY> 1,578,674 <CURRENT-ASSETS> 13,234,937 <PP&E> 14,700,530 <DEPRECIATION> 12,675,861 <TOTAL-ASSETS> 15,372,414 <CURRENT-LIABILITIES> 3,101,228 <BONDS> 0 <PREFERRED-MANDATORY> 38,615 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 12,232,571 <TOTAL-LIABILITY-AND-EQUITY> 15,372,414 <SALES> 2,154,666 <TOTAL-REVENUES> 4,531,620 <CGS> 1,313,919 <TOTAL-COSTS> 4,183,901 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 125,093 <INCOME-PRETAX> 472,812 <INCOME-TAX> 205,600 <INCOME-CONTINUING> 267,212 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 267,212 <EPS-BASIC> 0.08 <EPS-DILUTED> 0.08