<ARTICLE> 5
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          MAR-31-1997
<PERIOD-START>                             APR-01-1996
<PERIOD-END>                               DEC-31-1996
<CASH>                                             990
<SECURITIES>                                     7,088
<RECEIVABLES>                                    2,071
<ALLOWANCES>                                         0
<INVENTORY>                                      1,917
<CURRENT-ASSETS>                                12,871
<PP&E>                                           6,727
<DEPRECIATION>                                   3,486
<TOTAL-ASSETS>                                  16,560
<CURRENT-LIABILITIES>                            4,202
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            15
<OTHER-SE>                                      12,222
<TOTAL-LIABILITY-AND-EQUITY>                    16,560
<SALES>                                          5,031
<TOTAL-REVENUES>                                13,851
<CGS>                                            1,969
<TOTAL-COSTS>                                   19,993
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               (671)<F1>
<INCOME-PRETAX>                                (5,471)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (5,471)
<EPS-PRIMARY>                                    (.37)
<EPS-DILUTED>                                    (.37)
<FN>
<F1>Interest income, net.
</FN>