<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONDENSED CONSOLIDATED BALANCE SHEETS AT JUNE 30, 1998 (UNAUDITED) AND THE
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS FOR THE THREE MONTHS ENDED JUNE
30, 1998 (UNAUDITED) AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS      
<FISCAL-YEAR-END>                          MAR-31-1999
<PERIOD-START>                             APR-01-1998
<PERIOD-END>                               JUN-30-1998
<CASH>                                           5,617
<SECURITIES>                                         0
<RECEIVABLES>                                    1,495
<ALLOWANCES>                                     (260)
<INVENTORY>                                      1,435
<CURRENT-ASSETS>                                 8,511
<PP&E>                                          15,553
<DEPRECIATION>                                  12,384
<TOTAL-ASSETS>                                  12,495
<CURRENT-LIABILITIES>                            1,244
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            97
<OTHER-SE>                                      11,154
<TOTAL-LIABILITY-AND-EQUITY>                    12,495
<SALES>                                          3,846
<TOTAL-REVENUES>                                 3,846
<CGS>                                            1,965
<TOTAL-COSTS>                                    1,965
<OTHER-EXPENSES>                                   961
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   3
<INCOME-PRETAX>                                  1,006
<INCOME-TAX>                                        31
<INCOME-CONTINUING>                                975
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       975
<EPS-PRIMARY>                                      .10
<EPS-DILUTED>                                      .10