<ARTICLE>                                           5
<LEGEND>
          THIS SCHEDULE  CONTAINS SUMMARY FINANCIAL  INFORMATION  EXTRACTED FROM
THE  CONSOLIDATED  FINANCIAL  STATEMENTS (UNAUDITED) AT, AND FOR THE NINE MONTHS
ENDED  SEPTEMBER 30, 1998, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.

</LEGEND>
       

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                              DEC-31-1998
<PERIOD-END>                                   SEP-30-1998
<CASH>                                         10,362,000
<SECURITIES>                                   25,344,000
<RECEIVABLES>                                  4,233,000
<ALLOWANCES>                                   264,000
<INVENTORY>                                    6,666,000
<CURRENT-ASSETS>                               48,052,000
<PP&E>                                         6,679,000
<DEPRECIATION>                                 3,440,000
<TOTAL-ASSETS>                                 52,565,000
<CURRENT-LIABILITIES>                          8,680,000
<BONDS>                                        0
<PREFERRED-MANDATORY>                          0
<PREFERRED>                                    0
<COMMON>                                       165,000
<OTHER-SE>                                     43,705,000
<TOTAL-LIABILITY-AND-EQUITY>                   52,565,000
<SALES>                                        30,358,000
<TOTAL-REVENUES>                               74,213,000
<CGS>                                          20,538,000
<TOTAL-COSTS>                                  61,623,000
<OTHER-EXPENSES>                               0
<LOSS-PROVISION>                               4,000
<INTEREST-EXPENSE>                             8,000
<INCOME-PRETAX>                                13,791,000
<INCOME-TAX>                                   998,000
<INCOME-CONTINUING>                            12,793,000
<DISCONTINUED>                                 0
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                                   12,793,000
<EPS-PRIMARY>                                  0.78
<EPS-DILUTED>                                  0.75