<ARTICLE>       5
<LEGEND>
The schedule contains summary financial information extracted from quarterly 
financial statements for the twelve months ended December 31, 1994 and is 
qualified in its entirety by reference to such financial statements.
       
                                                              
<FISCAL-YEAR-END>                                                      DEC-31-1994
<PERIOD-END>                                                           DEC-31-1994
<PERIOD-TYPE>                                                               12-MOS
<CASH>                                                                  31,775,618
<SECURITIES>                                                            24,290,875
<RECEIVABLES>                                                            6,939,648
<ALLOWANCES>                                                              (921,000)
<INVENTORY>                                                              3,636,301
<CURRENT-ASSETS>                                                        67,950,914
<PP&E>                                                                  13,372,025
<DEPRECIATION>                                                          (5,940,443)
<TOTAL-ASSETS>                                                          84,913,166
<CURRENT-LIABILITIES>                                                   13,248,493
<BONDS>                                                                          0
<PREFERRED-MANDATORY>                                                            0 
<PREFERRED>                                                                      0
<COMMON>                                                                   584,724
<OTHER-SE>                                                              44,746,094
<TOTAL-LIABILITY-AND-EQUITY>                                            84,913,166
<SALES>                                                                 52,476,355
<TOTAL-REVENUES>                                                        57,143,912
<CGS>                                                                   21,216,799
<TOTAL-COSTS>                                                           21,216,799
<OTHER-EXPENSES>                                                           412,477
<LOSS-PROVISION>                                                                 0
<INTEREST-EXPENSE>                                                          20,320
<INCOME-PRETAX>                                                         20,185,118
<INCOME-TAX>                                                             7,466,000
<INCOME-CONTINUING>                                                     12,719,118
<DISCONTINUED>                                                                   0
<EXTRAORDINARY>                                                                  0
<CHANGES>                                                                        0
<NET-INCOME>                                                            12,719,118
<EPS-PRIMARY>                                                                 2.87
<EPS-DILUTED>                                                                    0