<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> JAN-31-1998 <PERIOD-END> JUL-31-1997 <CASH> 10,398,142 <SECURITIES> 0 <RECEIVABLES> 10,337,999 <ALLOWANCES> 248,570 <INVENTORY> 11,699,710 <CURRENT-ASSETS> 34,310,276 <PP&E> 26,061,090 <DEPRECIATION> 12,286,458 <TOTAL-ASSETS> 57,088,367 <CURRENT-LIABILITIES> 12,074,104 <BONDS> 4,477,156 <COMMON> 713,862 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 40,810,731 <TOTAL-LIABILITY-AND-EQUITY> 57,088,367 <SALES> 30,779,562 <TOTAL-REVENUES> 30,779,562 <CGS> 19,424,561 <TOTAL-COSTS> 25,619,660 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 175,247 <INCOME-PRETAX> 5,714,971 <INCOME-TAX> 2,228,839 <INCOME-CONTINUING> 3,486,132 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 3,486,132 <EPS-PRIMARY> .49 <EPS-DILUTED> .49