<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEETS AT MARCH 31, 2000 (AUDITED) AND THE CONSOLIDATED
STATEMENTS OF INCOME FOR THE TWELVE MONTHS ENDED MARCH 31, 2000 (AUDITED) AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> MAR-31-2000
<PERIOD-START> APR-01-1999
<PERIOD-END> MAR-31-2000
<CASH> 2,818
<SECURITIES> 5,403
<RECEIVABLES> 1,935
<ALLOWANCES> (500)
<INVENTORY> 4,419
<CURRENT-ASSETS> 14,489
<PP&E> 17,122
<DEPRECIATION> (12,398)
<TOTAL-ASSETS> 23,980
<CURRENT-LIABILITIES> 2,989
<BONDS> 0
0
0
<COMMON> 99
<OTHER-SE> 20,892
<TOTAL-LIABILITY-AND-EQUITY> 23,980
<SALES> 17,092
<TOTAL-REVENUES> 17,092
<CGS> 9,362
<TOTAL-COSTS> 9,362
<OTHER-EXPENSES> 5,295
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 1
<INCOME-PRETAX> 2,823
<INCOME-TAX> (2,537)
<INCOME-CONTINUING> 5,360
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 5,360
<EPS-BASIC> .55
<EPS-DILUTED> .54
</TABLE>