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CONSOLIDATED STATEMENTS OF NET INCOME (UNAUDITED) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 6 Months Ended
Oct. 30, 2011
Oct. 31, 2010
Oct. 30, 2011
Oct. 31, 2010
Net sales $ 58,013 $ 48,879 $ 118,283 $ 104,791
Cost of sales 49,367 41,270 100,759 87,473
Gross profit 8,646 7,609 17,524 17,318
Selling, general and administrative expenses 5,720 4,202 11,477 9,416
Restructuring credit       (8)
Income from operations 2,926 3,407 6,047 7,910
Interest expense 188 225 409 435
Interest income (110) (49) (238) (87)
Other (income) expense (15) 30 49 83
Income before income taxes 2,863 3,201 5,827 7,479
Income taxes (3,389) (801) (2,244) (270)
Net income $ 6,252 $ 4,002 $ 8,071 $ 7,749
Net income per share, basic $ 0.49 $ 0.31 $ 0.63 $ 0.60
Net income per share, diluted $ 0.49 $ 0.30 $ 0.62 $ 0.59
Average shares outstanding, basic 12,733 12,932 12,898 12,901
Average shares outstanding, diluted 12,871 13,167 13,025 13,186