<ARTICLE> 5 <PERIOD-TYPE> 3-MOS 12-MOS <FISCAL-YEAR-END> MAR-31-1997 MAR-31-1997 <PERIOD-END> MAR-31-1997 MAR-31-1997 <CASH> 6,733,730 6,733,730 <SECURITIES> 0 0 <RECEIVABLES> 6,391,244 6,391,244 <ALLOWANCES> 271,493 271,493 <INVENTORY> 2,179,592 2,179,592 <CURRENT-ASSETS> 16,266,856 16,266,856 <PP&E> 39,928,824 39,928,824 <DEPRECIATION> 17,839,752 17,839,752 <TOTAL-ASSETS> 38,780,672 38,780,672 <CURRENT-LIABILITIES> 5,540,215 5,540,215 <BONDS> 0 0 <PREFERRED-MANDATORY> 0 0 <PREFERRED> 0 0 <COMMON> 44,158 44,158 <OTHER-SE> 31,328,347 31,328,347 <TOTAL-LIABILITY-AND-EQUITY> 38,780,672 38,780,672 <SALES> 9,426,000 38,000,597 <TOTAL-REVENUES> 9,426,000 38,000,597 <CGS> 5,967,000 23,863,297 <TOTAL-COSTS> 5,967,000 23,863,297 <OTHER-EXPENSES> 0 (7,562) <LOSS-PROVISION> 0 0 <INTEREST-EXPENSE> 0 0 <INCOME-PRETAX> 2,084,000 8,381,227 <INCOME-TAX> 720,000 3,056,440 <INCOME-CONTINUING> 1,363,787 5,324,787 <DISCONTINUED> 0 0 <EXTRAORDINARY> 0 0 <CHANGES> 0 0 <NET-INCOME> 1,363,787 5,324,787 <EPS-PRIMARY> 0.29 1.11 <EPS-DILUTED> 0.29 1.11