<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE JUNE
30, 2000 FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH FINANCIAL STATEMENTS.
</LEGEND>

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-END>                               JUN-30-2000
<CASH>                                       1,455,407
<SECURITIES>                                18,301,176
<RECEIVABLES>                                7,920,339
<ALLOWANCES>                                   384,597
<INVENTORY>                                 19,644,982
<CURRENT-ASSETS>                            48,106,642
<PP&E>                                      24,723,256
<DEPRECIATION>                              12,395,536
<TOTAL-ASSETS>                              69,036,208
<CURRENT-LIABILITIES>                        7,520,777
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                     1,537,993
<OTHER-SE>                                  59,655,729
<TOTAL-LIABILITY-AND-EQUITY>                69,036,208
<SALES>                                     35,739,767
<TOTAL-REVENUES>                            35,739,767
<CGS>                                       21,034,444
<TOTAL-COSTS>                               21,034,444
<OTHER-EXPENSES>                            11,908,441
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                              3,357,047
<INCOME-TAX>                                 1,131,000
<INCOME-CONTINUING>                          2,226,047
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 2,226,047
<EPS-BASIC>                                     1.90
<EPS-DILUTED>                                     1.90