<ARTICLE> 5 <RESTATED> <MULTIPLIER> 1,000 <PERIOD-TYPE> 12-MOS 9-MOS 6-MOS 3-MOS <FISCAL-YEAR-END> MAY-31-1997 MAY-31-1997 MAY-31-1997 MAY-31-1997 <PERIOD-START> JUN-01-1996 JUN-01-1996 JUN-01-1996 JUN-01-1996 <PERIOD-END> MAY-31-1997 MAR-01-1997 NOV-30-1996 AUG-31-1996 <CASH> 12,203 12,868 14,090 14,427 <SECURITIES> 0 0 0 0 <RECEIVABLES> 7,181 6,866 5,870 8,001 <ALLOWANCES> 149 0 0 116 <INVENTORY> 8,700 9,672 10,305 11,446 <CURRENT-ASSETS> 31,113 31,610 32,427 34,996 <PP&E> 19,916 19,422 19,214 19,114 <DEPRECIATION> 9,767 9,120 8,506 7,872 <TOTAL-ASSETS> 50,964 52,053 53,465 56,669 <CURRENT-LIABILITIES> 7,417 7,506 7,923 9,369 <BONDS> 0 0 0 0 <PREFERRED-MANDATORY> 0 0 0 0 <PREFERRED> 0 0 0 0 <COMMON> 658 656 655 658 <OTHER-SE> 42,003 42,839 43,879 46,642 <TOTAL-LIABILITY-AND-EQUITY> 50,964 52,053 53,465 56,669 <SALES> 43,271 30,914 21,290 13,288 <TOTAL-REVENUES> 43,271 30,914 21,290 13,288 <CGS> 33,582 23,796 16,297 8,670 <TOTAL-COSTS> 50,512 36,524 25,421 13,321 <OTHER-EXPENSES> 0 60 0 0 <LOSS-PROVISION> 0 0 0 0 <INTEREST-EXPENSE> 148 41 26 11 <INCOME-PRETAX> (6,528) (5,082) (3,759) 185 <INCOME-TAX> (2,220) (1,626) (1,203) 83 <INCOME-CONTINUING> (4,308) (3,456) (2,556) 102 <DISCONTINUED> 0 0 0 0 <EXTRAORDINARY> 0 0 0 0 <CHANGES> 0 0 0 0 <NET-INCOME> (4,308) (3,456) (2,556) 102 <EPS-PRIMARY> (0.99) (0.79) (0.57) 0.02 <EPS-DILUTED> (0.99) (0.79) (0.57) 0.02