Unaudited Consolidated Statements of Income (USD $)	3 Months Ended		9 Months Ended
	Dec. 28, 2014	Dec. 29, 2013	Dec. 28, 2014	Dec. 29, 2013
Unaudited Consolidated Statements of Income [Abstract]
Revenues	$ 135,188,700	$ 144,915,200	$ 436,656,800	$ 435,550,000
Cost of goods sold	102,675,800	108,772,800	333,459,100	327,476,900
Gross profit	32,512,900	36,142,400	103,197,700	108,073,100
Selling, general and administrative expenses	29,828,800	28,974,800	88,574,600	86,352,300
Income from operations	2,684,100	7,167,600	14,623,100	21,720,800
Interest expense, net	61,300	37,800	139,100	159,400
Income before provision for income taxes	2,622,800	7,129,800	14,484,000	21,561,400
Provision for income taxes	941,600	2,709,300	5,617,800	8,267,600
Net income	$ 1,681,200	$ 4,420,500	$ 8,866,200	$ 13,293,800
Basic earnings per share (in dollars per share)	$ 0.20	$ 0.54	$ 1.07	$ 1.62
Diluted earnings per share (in dollars per share)	$ 0.20	$ 0.53	$ 1.06	$ 1.60
Cash dividends declared per common share (in dollars per share)	$ 0.20	$ 0.18	$ 0.60	$ 0.54