<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE BALANCE SHEETS AS OF JUNE 30, 1997, AND STATEMENTS OF OPERATIONS FOR THE PERIODS ENDED JUNE 30, 1997, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> JUN-30-1997 <CASH> 2,439,956 <SECURITIES> 165,000 <RECEIVABLES> 3,155,283 <ALLOWANCES> (63,369) <INVENTORY> 6,389,444 <CURRENT-ASSETS> 13,559,632 <PP&E> 20,760,316 <DEPRECIATION> (7,590,066) <TOTAL-ASSETS> 27,630,639 <CURRENT-LIABILITIES> 5,537,336 <BONDS> 0 <COMMON> 83,888 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 21,500,020 <TOTAL-LIABILITY-AND-EQUITY> 27,630,639 <SALES> 10,273,971 <TOTAL-REVENUES> 10,273,971 <CGS> 4,895,164 <TOTAL-COSTS> 3,203,185 <OTHER-EXPENSES> (835,759) <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 13,858 <INCOME-PRETAX> 2,997,523 <INCOME-TAX> 1,062,153 <INCOME-CONTINUING> 1,935,370 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 1,935,370 <EPS-PRIMARY> 0.22 <EPS-DILUTED> 0.22