<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM UNAUDITED
CONDENSED CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF OPERATIONS ON FORM
10-QSB AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FORM 10-QSB.
</LEGEND>
<MULTIPLIER> 1
<CURRENCY> U.S. DOLLARS
       
<S>                             <C>                     <C>
<PERIOD-TYPE>                   6-MOS                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1998
<PERIOD-START>                             JAN-01-1997             JAN-01-1998
<PERIOD-END>                               JUN-30-1997             JUN-30-1998
<EXCHANGE-RATE>                                      1                       1
<CASH>                                         156,291                 523,050
<SECURITIES>                                         0                       0
<RECEIVABLES>                                3,618,756               3,191,135
<ALLOWANCES>                                    98,000                 225,000
<INVENTORY>                                  1,727,684               1,749,941
<CURRENT-ASSETS>                             5,710,131               6,134,818
<PP&E>                                      23,179,456              24,614,915
<DEPRECIATION>                              18,792,473              19,690,663
<TOTAL-ASSETS>                              10,475,699              11,379,851
<CURRENT-LIABILITIES>                        2,261,753               2,906,844
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                        35,938                  37,959
<OTHER-SE>                                   8,178,008               8,435,048
<TOTAL-LIABILITY-AND-EQUITY>                10,475,699              11,379,851
<SALES>                                              0                 825,703
<TOTAL-REVENUES>                            10,883,547               3,445,291
<CGS>                                                0                 763,599
<TOTAL-COSTS>                                7,137,410               5,226,785
<OTHER-EXPENSES>                             2,797,812                       0
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                               3,646                 (6,150)
<INCOME-PRETAX>                                951,971             (1,775,344)
<INCOME-TAX>                                   100,000                       0
<INCOME-CONTINUING>                                  0             (1,775,344)
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                   851,971             (1,775,344)
<EPS-PRIMARY>                                     0.28                  (0.55)
<EPS-DILUTED>                                     0.27                  (0.55)
        

</TABLE>