<ARTICLE> 5

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               JUN-30-2000
<CASH>                                       1,044,122
<SECURITIES>                                 2,712,132
<RECEIVABLES>                                4,598,411
<ALLOWANCES>                                   409,066
<INVENTORY>                                    460,656
<CURRENT-ASSETS>                             9,373,467
<PP&E>                                       9,137,373
<DEPRECIATION>                               5,802,703
<TOTAL-ASSETS>                              13,066,625
<CURRENT-LIABILITIES>                        2,819,225
<BONDS>                                              0
<PREFERRED-MANDATORY>                          133,062
<PREFERRED>                                          0
<COMMON>                                             0
<OTHER-SE>                                   9,966,818
<TOTAL-LIABILITY-AND-EQUITY>                         0
<SALES>                                     10,154,728
<TOTAL-REVENUES>                            10,154,728
<CGS>                                        4,503,280
<TOTAL-COSTS>                                4,503,280
<OTHER-EXPENSES>                             3,896,286
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                              2,096,359
<INCOME-TAX>                                   863,700
<INCOME-CONTINUING>                          1,232,659
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 1,232,659
<EPS-BASIC>                                       0.06
<EPS-DILUTED>                                     0.06