<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> YEAR YEAR YEAR <FISCAL-YEAR-END> JUN-30-1999 JUN-30-1998 JUN-30-1997 <PERIOD-START> JUL-01-1998 JUL-01-1997 JUL-01-1996 <PERIOD-END> JUN-30-1999 JUN-30-1998 JUN-30-1997 <CASH> 29,963 16,347 18,216 <SECURITIES> 7,013 26,308 16,374 <RECEIVABLES> 4,558 5,297 6,213 <ALLOWANCES> 0 0 0 <INVENTORY> 5,816 7,725 10,074 <CURRENT-ASSETS> 49,171 58,378 54,550 <PP&E> 16,391 16,313 17,783 <DEPRECIATION> 14,927 14,519 16,062 <TOTAL-ASSETS> 51,582 61,472 57,652 <CURRENT-LIABILITIES> 5,274 5,755 6,489 <BONDS> 0 0 0 <PREFERRED-MANDATORY> 0 0 0 <PREFERRED> 0 0 0 <COMMON> 72 71 69 <OTHER-SE> 46,236 55,646 50,592 <TOTAL-LIABILITY-AND-EQUITY> 51,582 61,472 57,652 <SALES> 37,173 45,053 56,460 <TOTAL-REVENUES> 37,173 45,053 56,460 <CGS> 17,517 22,324 30,443 <TOTAL-COSTS> 33,505 40,810 49,211 <OTHER-EXPENSES> 2,208 3,314 (1,377) <LOSS-PROVISION> 0 0 0 <INTEREST-EXPENSE> 0 0 0 <INCOME-PRETAX> 5,876 7,557 8,626 <INCOME-TAX> 960 2,580 3,865 <INCOME-CONTINUING> 0 0 0 <DISCONTINUED> 0 0 0 <EXTRAORDINARY> 0 0 0 <CHANGES> 0 0 0 <NET-INCOME> 4,916 4,977 4,761 <EPS-BASIC> 0.94 0.70 0.70 <EPS-DILUTED> 0.88 0.70 0.69