<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE 10-Q FOR
THE SIX MONTHS ENDED JUNE 30, 2000, AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.

<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               JUN-30-2000
<CASH>                                          29,118
<SECURITIES>                                    12,639
<RECEIVABLES>                                        0
<ALLOWANCES>                                         0
<INVENTORY>                                      1,589
<CURRENT-ASSETS>                                43,346
<PP&E>                                          17,074
<DEPRECIATION>                                (14,246)
<TOTAL-ASSETS>                                  50,896
<CURRENT-LIABILITIES>                            4,596
<BONDS>                                          1,300
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            27
<OTHER-SE>                                      44,972
<TOTAL-LIABILITY-AND-EQUITY>                    50,896
<SALES>                                              0
<TOTAL-REVENUES>                                   885
<CGS>                                                0
<TOTAL-COSTS>                                        0
<OTHER-EXPENSES>                                 7,478
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 119
<INCOME-PRETAX>                                      0
<INCOME-TAX>                                   (6,712)
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (6,712)
<EPS-BASIC>                                     (0,27)
<EPS-DILUTED>                                   (0.27)