<ARTICLE> 5
<MULTIPLIER> 1,000
<CURRENCY> U.S.DOLLARS
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<EXCHANGE-RATE>                                      1
<CASH>                                             803
<SECURITIES>                                     3,690
<RECEIVABLES>                                    3,614
<ALLOWANCES>                                       180
<INVENTORY>                                      1,779
<CURRENT-ASSETS>                                 9,980
<PP&E>                                           1,311
<DEPRECIATION>                                     764
<TOTAL-ASSETS>                                  13,214
<CURRENT-LIABILITIES>                            2,031
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                         22
<COMMON>                                           131
<OTHER-SE>                                      10,980
<TOTAL-LIABILITY-AND-EQUITY>                    13,214
<SALES>                                          5,506
<TOTAL-REVENUES>                                 6,272
<CGS>                                                0
<TOTAL-COSTS>                                    2,250
<OTHER-EXPENSES>                                 3,562
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                    460
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                                460
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       460
<EPS-PRIMARY>                                      .03
<EPS-DILUTED>                                      .03