<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from Company's
form 10K for the year ended December 31, 1997 filed March 31, 1998 with
Securities and Exchange Commission and is qualified in its entirety by reference
to such 10K.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                          31,453
<SECURITIES>                                     9,380
<RECEIVABLES>                                    2,050
<ALLOWANCES>                                        78
<INVENTORY>                                          0
<CURRENT-ASSETS>                                44,038
<PP&E>                                          16,093
<DEPRECIATION>                                  12,197
<TOTAL-ASSETS>                                  49,923
<CURRENT-LIABILITIES>                            5,641
<BONDS>                                            661
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           103
<OTHER-SE>                                      43,375
<TOTAL-LIABILITY-AND-EQUITY>                    49,923
<SALES>                                              0
<TOTAL-REVENUES>                                20,903
<CGS>                                                0
<TOTAL-COSTS>                                    7,445
<OTHER-EXPENSES>                                 2,504
<LOSS-PROVISION>                                    81
<INTEREST-EXPENSE>                                 600
<INCOME-PRETAX>                                    617
<INCOME-TAX>                                        28
<INCOME-CONTINUING>                                589
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       589
<EPS-PRIMARY>                                     0.08
<EPS-DILUTED>                                     0.07