<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S AUDITED DECEMBER 31, 1997 FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
<S>                                        <C>                     <C>
<PERIOD-TYPE>                                   12-MOS                  12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1996
<PERIOD-START>                             JAN-01-1997             JAN-01-1996
<PERIOD-END>                               DEC-31-1997             DEC-31-1996
<CASH>                                         451,434                 621,742
<SECURITIES>                                    50,000                  50,000
<RECEIVABLES>                                2,885,125               1,611,965
<ALLOWANCES>                                    18,992                 255,494
<INVENTORY>                                    136,116                 125,850
<CURRENT-ASSETS>                             3,726,348               2,210,057
<PP&E>                                       3,467,063               2,366,716
<DEPRECIATION>                               1,094,938                 736,556
<TOTAL-ASSETS>                               7,929,711               4,085,269
<CURRENT-LIABILITIES>                        3,213,366               1,512,905
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                     6,158,584               4,022,671
<OTHER-SE>                                           0                       0
<TOTAL-LIABILITY-AND-EQUITY>                 7,929,711               4,085,269
<SALES>                                     10,234,403               6,219,946
<TOTAL-REVENUES>                            10,234,403               6,219,946
<CGS>                                        4,727,236               3,604,729
<TOTAL-COSTS>                               10,136,176               7,143,595
<OTHER-EXPENSES>                                     0                       0
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                              99,496                  36,235
<INCOME-PRETAX>                                 98,227               (923,649)
<INCOME-TAX>                                 (332,566)               (164,591)
<INCOME-CONTINUING>                          (436,808)             (1,208,107)
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                 (436,808)             (1,208,107)
<EPS-PRIMARY>                                   (0.14)                  (0.41)
<EPS-DILUTED>                                   (0.14)                  (0.41)
        

</TABLE>