<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted
from the March 31, 1999 10-K Balance Sheets, Income Statements,
and Cash Flow Statements, and is qualified in its entirety by
reference to such financial statements.
</LEGEND>
<S> <C>
<PERIOD-TYPE> 12-Mos
<FISCAL-YEAR-END> Mar-31-2000
<PERIOD-END> Mar-31-2000
<CASH> 64040000
<SECURITIES> 0
<RECEIVABLES> 2448000
<ALLOWANCES> 15000
<INVENTORY> 4112000
<CURRENT-ASSETS> 13542000
<PP&E> 13375000
<DEPRECIATION> 0
<TOTAL-ASSETS> 26917000
<CURRENT-LIABILITIES> 1242000
<BONDS> 0
<COMMON> 14000
0
0
<OTHER-SE> 25044000
<TOTAL-LIABILITY-AND-EQUITY> 26917000
<SALES> 12132000
<TOTAL-REVENUES> 12132000
<CGS> 7936000
<TOTAL-COSTS> 9588000
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> 2891000
<INCOME-TAX> 949000
<INCOME-CONTINUING> 1942000
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 1942000
<EPS-BASIC> .14
<EPS-DILUTED> .14
</TABLE>