<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 March 31, 1997, and is qualified in its entirety by reference to such
financial statements.


</LEGEND>
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               MAR-31-1997
<CASH>                                           5,724
<SECURITIES>                                    22,510
<RECEIVABLES>                                    6,301
<ALLOWANCES>                                       527
<INVENTORY>                                      5,978
<CURRENT-ASSETS>                                44,144
<PP&E>                                           8,171
<DEPRECIATION>                                   5,862
<TOTAL-ASSETS>                                  63,535
<CURRENT-LIABILITIES>                           10,325
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        30,658
<OTHER-SE>                                      22,552
<TOTAL-LIABILITY-AND-EQUITY>                    63,535
<SALES>                                         16,038
<TOTAL-REVENUES>                                16,038
<CGS>                                            6,816
<TOTAL-COSTS>                                   14,764
<OTHER-EXPENSES>                                 (641)
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                  1,915
<INCOME-TAX>                                       583
<INCOME-CONTINUING>                              1,332
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     1,332
<EPS-PRIMARY>                                     0.14
<EPS-DILUTED>                                     0.14