Consolidated Statements of Comprehensive Income (USD $)	12 Months Ended
	Mar. 31, 2013	Apr. 01, 2012	Mar. 27, 2011
Consolidated Statements of Income [Abstract]
Revenues	$ 752,565,000	$ 733,389,900	$ 605,219,200
Cost of goods sold	605,525,800	584,733,700	471,938,600
Gross profit	147,039,200	148,656,200	133,280,600
Selling, general and administrative expenses	117,820,600	121,652,400	117,305,100
Income from operations	29,218,600	27,003,800	15,975,500
Interest, net	224,200	292,900	420,600
Income before provision for income taxes	28,994,400	26,710,900	15,554,900
Provision for income taxes	11,200,500	10,274,000	5,536,700
Net income	17,793,900	16,436,900	10,018,200
Basic earnings per share (in dollars per share)	$ 2.22	$ 2.12	$ 1.33
Diluted earnings per share (in dollars per share)	$ 2.15	$ 2.03	$ 1.27
Cash dividends declared per common share (in dollars per share)	$ 1.47	$ 0.55	$ 0.40
Comprehensive income:
Net income	17,793,900	16,436,900	10,018,200
Change in value of interest rate swap, net of tax	0	24,600	73,000
Total comprehensive income	$ 17,793,900	$ 16,461,500	$ 10,091,200