<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE JUNE 30, 1998 FORM 10-Q AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS 6-MOS <FISCAL-YEAR-END> DEC-31-1998 DEC-31-1998 <PERIOD-START> APR-01-1998 JAN-01-1998 <PERIOD-END> JUN-30-1998 JUN-30-1998 <CASH> 2,861 2,861 <SECURITIES> 1,039 1,039 <RECEIVABLES> 1,848 1,848 <ALLOWANCES> 34 34 <INVENTORY> 18 18 <CURRENT-ASSETS> 6,322 6,322 <PP&E> 5,653 5,653 <DEPRECIATION> 3,937 3,937 <TOTAL-ASSETS> 29,948 29,948 <CURRENT-LIABILITIES> 5,711 5,711 <BONDS> 0 0 <PREFERRED-MANDATORY> 0 0 <PREFERRED> 0 0 <COMMON> 416 416 <OTHER-SE> 22,929 22,929 <TOTAL-LIABILITY-AND-EQUITY> 29,948 29,948 <SALES> 0 0 <TOTAL-REVENUES> 3,461 6,693 <CGS> 0 0 <TOTAL-COSTS> 3,237 6,234 <OTHER-EXPENSES> 191 326 <LOSS-PROVISION> 0 0 <INTEREST-EXPENSE> 9 13 <INCOME-PRETAX> 552 350 <INCOME-TAX> 193 129 <INCOME-CONTINUING> 358 219 <DISCONTINUED> 0 36 <EXTRAORDINARY> 0 0 <CHANGES> 0 0 <NET-INCOME> 358 255 <EPS-PRIMARY> 0.09 0.06 <EPS-DILUTED> 0.08 0.06