<TABLE> <S> <C>

<ARTICLE>       5
<LEGEND>
The schedule contains summary financial information extracted from financial
statements for the twelve months ended December 31, 1997 and is qualified in
its entirety by reference to such financial statements.
       
<S>                                                              <C>
<FISCAL-YEAR-END>                                                      DEC-31-1997
<PERIOD-END>                                                           DEC-31-1997
<PERIOD-TYPE>                                                               12-MOS
<CASH>                                                                  45,359,551
<SECURITIES>                                                            25,942,687
<RECEIVABLES>                                                            6,208,260
<ALLOWANCES>                                                              (849,000)
<INVENTORY>                                                              3,781,269
<CURRENT-ASSETS>                                                        80,772,039
<PP&E>                                                                  11,819,633
<DEPRECIATION>                                                          (4,695,228)
<TOTAL-ASSETS>                                                          96,957,278
<CURRENT-LIABILITIES>                                                   15,858,092
<BONDS>                                                                          0
<PREFERRED-MANDATORY>                                                            0 
<PREFERRED>                                                                      0
<COMMON>                                                                   584,724
<OTHER-SE>                                                              55,244,310
<TOTAL-LIABILITY-AND-EQUITY>                                            96,957,278
<SALES>                                                                 52,633,994
<TOTAL-REVENUES>                                                        56,287,289
<CGS>                                                                   20,709,590
<TOTAL-COSTS>                                                           20,709,590
<OTHER-EXPENSES>                                                           327,417
<LOSS-PROVISION>                                                                 0
<INTEREST-EXPENSE>                                                               0
<INCOME-PRETAX>                                                         19,724,460
<INCOME-TAX>                                                             6,900,000
<INCOME-CONTINUING>                                                     12,824,460
<DISCONTINUED>                                                                   0
<EXTRAORDINARY>                                                                  0
<CHANGES>                                                                        0
<NET-INCOME>                                                            12,824,460
<EPS-PRIMARY>                                                                 3.45
<EPS-DILUTED>                                                                    0
        

</TABLE>