<ARTICLE> 5
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                           9,983
<SECURITIES>                                    16,623
<RECEIVABLES>                                    6,726
<ALLOWANCES>                                       204
<INVENTORY>                                        737
<CURRENT-ASSETS>                                35,165
<PP&E>                                           3,916
<DEPRECIATION>                                   2,670
<TOTAL-ASSETS>                                  47,408
<CURRENT-LIABILITIES>                            6,992
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            19
<OTHER-SE>                                      39,853
<TOTAL-LIABILITY-AND-EQUITY>                    47,408
<SALES>                                         14,154
<TOTAL-REVENUES>                                14,154
<CGS>                                            1,796
<TOTAL-COSTS>                                    3,757
<OTHER-EXPENSES>                                 9,553
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  95
<INCOME-PRETAX>                                  1,082
<INCOME-TAX>                                        70
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     1,012
<EPS-BASIC>                                       0.13
<EPS-DILUTED>                                     0.06