CONSOLIDATED STATEMENTS OF NET INCOME (UNAUDITED) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jan. 27, 2013	Jan. 29, 2012	Jan. 27, 2013	Jan. 29, 2012
Net sales	$ 63,695	$ 60,450	$ 198,439	$ 178,733
Cost of sales	52,010	51,939	161,757	152,698
Gross profit	11,685	8,511	36,682	26,035
Selling, general and administrative expenses	6,822	5,518	21,672	16,995
Income from operations	4,863	2,993	15,010	9,040
Interest expense	145	181	491	590
Interest income	(105)	(148)	(328)	(387)
Other expense	300	83	421	132
Income before income taxes	4,523	2,877	14,426	8,705
Income taxes	1,700	1,075	(188)	(1,168)
Net income	$ 2,823	$ 1,802	$ 14,614	$ 9,873
Net income per share, basic	$ 0.23	$ 0.14	$ 1.19	$ 0.77
Net income per share, diluted	$ 0.23	$ 0.14	$ 1.17	$ 0.76
Average shares outstanding, basic	12,095	12,536	12,279	12,777
Average shares outstanding, diluted	12,290	12,677	12,467	12,918