<ARTICLE>                     5
<LEGEND>
This  schedule  contains  summary  financial   information  extracted  from  the
consolidated  balance sheet,  consolidated  statement of income and consolidated
statement  of cash  flows  included  in the  Company's  Form 10-Q for the period
ending September 30, 1999, and is qualified in its entirety by reference to such
financial statements.
</LEGEND>

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                              DEC-31-1999
<PERIOD-START>                                 JAN-01-1999
<PERIOD-END>                                   SEP-30-1999
<CASH>                                            5,154
<SECURITIES>                                      4,993
<RECEIVABLES>                                     6,343
<ALLOWANCES>                                        337
<INVENTORY>                                       3,099
<CURRENT-ASSETS>                                 23,703
<PP&E>                                            8,496
<DEPRECIATION>                                    6,323
<TOTAL-ASSETS>                                   55,696
<CURRENT-LIABILITIES>                            10,570
<BONDS>                                               0
<PREFERRED-MANDATORY>                                 0
<PREFERRED>                                           0
<COMMON>                                         31,470
<OTHER-SE>                                       13,656
<TOTAL-LIABILITY-AND-EQUITY>                     55,696
<SALES>                                          47,254
<TOTAL-REVENUES>                                 47,254
<CGS>                                            21,400
<TOTAL-COSTS>                                    43,785
<OTHER-EXPENSES>                                (1,404)
<LOSS-PROVISION>                                      0
<INTEREST-EXPENSE>                                    0
<INCOME-PRETAX>                                   4,873
<INCOME-TAX>                                      1,218
<INCOME-CONTINUING>                               3,655
<DISCONTINUED>                                        0
<EXTRAORDINARY>                                       0
<CHANGES>                                             0
<NET-INCOME>                                      3,655
<EPS-BASIC>                                        0.45
<EPS-DILUTED>                                      0.44