<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEETS AS OF SEPTEMBER 30, 1999 AND THE CONSOLIDATED
STATEMENTS OF OPERATIONS FOR THE NINE-MONTH PERIOD ENDED SEPTEMBER 30, 1999
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               SEP-30-1999
<CASH>                                       6,660,000
<SECURITIES>                                 2,361,000
<RECEIVABLES>                                2,994,000
<ALLOWANCES>                                  (172,000)
<INVENTORY>                                    205,000
<CURRENT-ASSETS>                               626,000
<PP&E>                                      14,124,000
<DEPRECIATION>                             (12,419,000)
<TOTAL-ASSETS>                              15,846,000
<CURRENT-LIABILITIES>                        4,594,000
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       704,000
<OTHER-SE>                                   8,245,000
<TOTAL-LIABILITY-AND-EQUITY>                15,846,000
<SALES>                                      5,408,000
<TOTAL-REVENUES>                             9,120,000
<CGS>                                        3,229,000
<TOTAL-COSTS>                                6,351,000
<OTHER-EXPENSES>                             6,744,000
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             144,000
<INCOME-PRETAX>                               (539,000)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                           (539,000)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                  (539,000)
<EPS-BASIC>                                    (0.01)
<EPS-DILUTED>                                    (0.01)