Consolidated Statements of Income (USD $)	12 Months Ended
	Apr. 01, 2012	Mar. 27, 2011	Mar. 28, 2010
Consolidated Statements of Income [Abstract]
Revenues	$ 733,389,900	$ 605,219,200	$ 522,031,500
Cost of goods sold	584,733,700	471,938,600	398,706,300
Gross profit	148,656,200	133,280,600	123,325,200
Selling, general and administrative expenses	121,652,400	117,305,100	108,269,000
Income from operations	27,003,800	15,975,500	15,056,200
Interest, net	292,900	420,600	318,300
Income before provision for income taxes	26,710,900	15,554,900	14,737,900
Provision for income taxes	10,274,000	5,536,700	5,599,100
Net income	$ 16,436,900	$ 10,018,200	$ 9,138,800
Basic earnings per share (in dollars per share)	$ 2.12	$ 1.33	$ 1.24
Diluted earnings per share (in dollars per share)	$ 2.03	$ 1.27	$ 1.19
Cash dividends declared per common share (in dollars per share)	$ 0.55	$ 0.40	$ 0.20