<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
JUNE 30, 1998 FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-END>                               JUN-30-1998
<CASH>                                       1,738,594
<SECURITIES>                                18,142,217
<RECEIVABLES>                                6,030,058
<ALLOWANCES>                                         0
<INVENTORY>                                 18,229,532
<CURRENT-ASSETS>                            45,233,443
<PP&E>                                      20,693,289
<DEPRECIATION>                            (11,023,472)
<TOTAL-ASSETS>                              62,582,911
<CURRENT-LIABILITIES>                        3,494,043
<BONDS>                                              0
<COMMON>                                     1,537,993
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                  56,639,139
<TOTAL-LIABILITY-AND-EQUITY>                62,582,911
<SALES>                                     20,795,210
<TOTAL-REVENUES>                            20,795,210
<CGS>                                       14,323,818
<TOTAL-COSTS>                               14,323,818
<OTHER-EXPENSES>                             7,289,649
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                              (262,075)
<INCOME-TAX>                                  (82,000)
<INCOME-CONTINUING>                          (180,075)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 (180,075)
<EPS-PRIMARY>                                    (.15)
<EPS-DILUTED>                                    (.15)