<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM COMPANY'S
FORM 10-Q FOR THE THREE MONTHS ENDED MARCH 31, 1999 FILED MAY 13, 1999 WITH
SECURITIES AND EXCHANGE COMMISSION AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
TO SUCH 10-Q.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               MAR-31-1999
<CASH>                                          36,790
<SECURITIES>                                     7,923
<RECEIVABLES>                                    5,342
<ALLOWANCES>                                      (88)
<INVENTORY>                                          0
<CURRENT-ASSETS>                                53,655
<PP&E>                                          19,021
<DEPRECIATION>                                (15,168)
<TOTAL-ASSETS>                                  63,970
<CURRENT-LIABILITIES>                            6,625
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           107
<OTHER-SE>                                      57,095
<TOTAL-LIABILITY-AND-EQUITY>                    63,970
<SALES>                                              0
<TOTAL-REVENUES>                                 8,372
<CGS>                                                0
<TOTAL-COSTS>                                    2,563
<OTHER-EXPENSES>                                   611
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  18
<INCOME-PRETAX>                                  2,432
<INCOME-TAX>                                       931
<INCOME-CONTINUING>                              1,501
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     1,501
<EPS-PRIMARY>                                     0.14
<EPS-DILUTED>                                     0.13