<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> APR-30-1998 <PERIOD-START> MAY-01-1997 <PERIOD-END> OCT-31-1997 <CASH> 2,695 <SECURITIES> 0 <RECEIVABLES> 3,730 <ALLOWANCES> 851 <INVENTORY> 5,588 <CURRENT-ASSETS> 11,602 <PP&E> 27,966 <DEPRECIATION> 24,164 <TOTAL-ASSETS> 18,727 <CURRENT-LIABILITIES> 10,898 <BONDS> 812 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 51 <OTHER-SE> 7,623 <TOTAL-LIABILITY-AND-EQUITY> 18,727 <SALES> 3,056 <TOTAL-REVENUES> 18,351 <CGS> 1,142 <TOTAL-COSTS> 15,535 <OTHER-EXPENSES> 824 <LOSS-PROVISION> 6 <INTEREST-EXPENSE> 54 <INCOME-PRETAX> (719) <INCOME-TAX> 0 <INCOME-CONTINUING> (719) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (719) <EPS-PRIMARY> (.14) <EPS-DILUTED> (.14)