<ARTICLE> 5
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1995
<PERIOD-START>                             JAN-01-1995
<PERIOD-END>                               DEC-31-1995
<EXCHANGE-RATE>                                      1
<CASH>                                           7,182
<SECURITIES>                                     8,937
<RECEIVABLES>                                        0
<ALLOWANCES>                                         0
<INVENTORY>                                        538
<CURRENT-ASSETS>                                17,588
<PP&E>                                           6,731
<DEPRECIATION>                                   5,914
<TOTAL-ASSETS>                                  18,518
<CURRENT-LIABILITIES>                            2,343
<BONDS>                                          1,283
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          4
<COMMON>                                           287
<OTHER-SE>                                      14,601
<TOTAL-LIABILITY-AND-EQUITY>                    18,518
<SALES>                                              0
<TOTAL-REVENUES>                                     0
<CGS>                                                0
<TOTAL-COSTS>                                        0
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 140
<INCOME-PRETAX>                               (12,271)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                           (12,271)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                  (12,271)
<EPS-PRIMARY>                                    (.98)
<EPS-DILUTED>                                    (.98)