<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S FINANCIAL STATEMENTS INCLUDED IN ITS FORM 10-Q FOR THE FISCAL QUARTER
ENDED JUNE 30, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          MAR-31-1998
<PERIOD-START>                             APR-01-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                           3,298
<SECURITIES>                                    13,426
<RECEIVABLES>                                       56
<ALLOWANCES>                                        46
<INVENTORY>                                          0
<CURRENT-ASSETS>                                16,908
<PP&E>                                          19,939
<DEPRECIATION>                                  11,916
<TOTAL-ASSETS>                                  27,534
<CURRENT-LIABILITIES>                            1,539
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           210
<OTHER-SE>                                      24,784
<TOTAL-LIABILITY-AND-EQUITY>                    27,534
<SALES>                                              0
<TOTAL-REVENUES>                                    24
<CGS>                                                0
<TOTAL-COSTS>                                        0
<OTHER-EXPENSES>                                 3,005
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  10
<INCOME-PRETAX>                                      0
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                            (2,568)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (2,568)
<EPS-PRIMARY>                                   (0.12)
<EPS-DILUTED>                                   (0.12)