
<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
ART. 5 FINANCIAL DATA SCHEDULE FOR ANNUAL 10-K
</LEGEND>
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                       4,908,177
<SECURITIES>                                         0
<RECEIVABLES>                                3,399,162
<ALLOWANCES>                                    72,962
<INVENTORY>                                  1,602,321
<CURRENT-ASSETS>                            10,223,041
<PP&E>                                       7,750,316
<DEPRECIATION>                               2,858,195
<TOTAL-ASSETS>                              15,115,162
<CURRENT-LIABILITIES>                        4,889,563
<BONDS>                                              0
<PREFERRED-MANDATORY>                        5,798,725
<PREFERRED>                                     37,698
<COMMON>                                         3,364
<OTHER-SE>                                 (2,001,137)
<TOTAL-LIABILITY-AND-EQUITY>                15,115,162
<SALES>                                     13,094,871
<TOTAL-REVENUES>                            16,606,769
<CGS>                                        9,311,140
<TOTAL-COSTS>                               15,683,990
<OTHER-EXPENSES>                               (4,550)
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             369,233
<INCOME-PRETAX>                                671,826
<INCOME-TAX>                                    20,000
<INCOME-CONTINUING>                            651,826
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   651,826
<EPS-PRIMARY>                                     0.18
<EPS-DILUTED>                                     0.13
        

</TABLE>
