Consolidated Statements of Cash Flows - USD ($)	9 Months Ended
	Dec. 27, 2015	Dec. 28, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 7,330,300	$ 8,866,200
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,568,300	3,493,200
Gain on sale of property and equipment		(3,000)
Non-cash stock-based compensation expense	510,600	947,000
Deferred income taxes and other	(555,300)	(436,600)
Change in trade accounts receivable	(7,638,900)	3,618,700
Change in product inventory	6,432,100	(3,159,100)
Change in prepaid expenses and other current assets	5,337,700	(8,016,200)
Change in trade accounts payable	(2,646,000)	324,500
Change in payroll, benefits and taxes	(816,800)	(3,253,400)
Change in income and sales tax liabilities	342,500	(666,600)
Change in accrued expenses and other current liabilities	(4,170,700)	8,201,500
Net cash provided by operating activities	7,693,800	9,916,200
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(2,359,100)	(1,932,000)
Proceeds from sale of property and equipment		3,000
Net cash used in investing activities	(2,359,100)	(1,929,000)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments on long-term debt	(187,900)	(187,700)
Proceeds from issuance of stock	81,200	110,000
Cash dividends paid	(4,961,000)	(4,991,700)
Purchases of treasury stock and repurchases of stock from employees and directors for minimum tax withholdings	(826,900)	(6,022,200)
Excess tax benefit from stock-based compensation	510,400	1,172,600
Net cash used in financing activities	(5,384,200)	(9,919,000)
Net decrease in cash and cash equivalents	(49,500)	(1,931,800)
CASH AND CASH EQUIVALENTS, beginning of period	7,524,000	11,467,900
CASH AND CASH EQUIVALENTS, end of period	$ 7,474,500	$ 9,536,100