<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEETS AND CONSOLIDATED STATEMENTS OF OPERATIONS CONTAINED
IN EXHIBIT 13.3 OF THE COMPANY'S ANNUAL REPORT ON FORM 10-K FOR THE YEAR ENDED
DECEMBER 31, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIALS STATEMENTS AND THE NOTES THERETO.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<CASH>                                          26,929
<SECURITIES>                                    46,573
<RECEIVABLES>                                    2,345
<ALLOWANCES>                                       775
<INVENTORY>                                      5,346
<CURRENT-ASSETS>                               101,027
<PP&E>                                          34,440
<DEPRECIATION>                                  16,543
<TOTAL-ASSETS>                                 125,273
<CURRENT-LIABILITIES>                           14,483
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            20
<OTHER-SE>                                     106,408
<TOTAL-LIABILITY-AND-EQUITY>                   106,428
<SALES>                                              0
<TOTAL-REVENUES>                                86,959
<CGS>                                                0
<TOTAL-COSTS>                                   51,087
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 630
<INCOME-PRETAX>                                 21,900
<INCOME-TAX>                                       422
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    21,478
<EPS-PRIMARY>                                     1.08
<EPS-DILUTED>                                      .92