<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEETS AS OF JUNE 30, 1998 AND THE CONSOLIDATED STATEMENTS
OF OPERATIONS FOR THE SIX-MONTH PERIOD ENDED JUNE 30, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               JUN-30-1998
<CASH>                                       3,018,000
<SECURITIES>                                         0
<RECEIVABLES>                                1,567,000
<ALLOWANCES>                                  (50,000)
<INVENTORY>                                    313,000
<CURRENT-ASSETS>                               146,000
<PP&E>                                      17,914,000
<DEPRECIATION>                            (14,587,000)
<TOTAL-ASSETS>                              18,831,000
<CURRENT-LIABILITIES>                        7,610,000
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       568,000
<OTHER-SE>                                     476,000
<TOTAL-LIABILITY-AND-EQUITY>                18,831,000
<SALES>                                      3,684,000
<TOTAL-REVENUES>                             6,594,000
<CGS>                                        3,835,000
<TOTAL-COSTS>                                6,169,000
<OTHER-EXPENSES>                             9,404,000
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             437,000
<INCOME-PRETAX>                            (9,107,000)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                               (9,107,000)
<EPS-PRIMARY>                                   (0.17)
<EPS-DILUTED>                                   (0.17)