<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FORM 10-KSB
FOR THE YEAR ENDED MAY 31, 2000 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1
<CURRENCY> US DOLLARS
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> MAY-31-2000
<PERIOD-START> JUN-01-1999
<PERIOD-END> MAY-31-2000
<EXCHANGE-RATE> 1
<CASH> 72,099
<SECURITIES> 0
<RECEIVABLES> 2,410,910
<ALLOWANCES> 0
<INVENTORY> 225,841
<CURRENT-ASSETS> 2,480,032
<PP&E> 4,553,399
<DEPRECIATION> 2,946,699
<TOTAL-ASSETS> 5,326,074
<CURRENT-LIABILITIES> 1,567,671
<BONDS> 0
0
0
<COMMON> 16,004
<OTHER-SE> 3,552,255
<TOTAL-LIABILITY-AND-EQUITY> 5,326,074
<SALES> 119,638
<TOTAL-REVENUES> 11,543,994
<CGS> 99,708
<TOTAL-COSTS> 11,261,583
<OTHER-EXPENSES> 166,943
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 57,113
<INCOME-PRETAX> 182,246
<INCOME-TAX> 85,000
<INCOME-CONTINUING> 97,246
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 97,246
<EPS-BASIC> .11
<EPS-DILUTED> .11
</TABLE>