Unaudited Consolidated Statements of Cash Flows (USD $)	9 Months Ended
	Dec. 28, 2014	Dec. 29, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 8,866,200	$ 13,293,800
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,493,200	3,715,400
Gain on sale of property and equipment	(3,000)	(29,500)
Non-cash stock-based compensation expense	947,000	1,595,000
Deferred income taxes and other	(436,600)	(164,800)
Change in trade accounts receivable	3,618,700	18,571,700
Change in product inventory	(3,159,100)	(1,458,500)
Change in prepaid expenses and other current assets	(8,016,200)	1,062,300
Change in trade accounts payable	324,500	(21,134,500)
Change in payroll, benefits and taxes	(3,253,400)	(3,891,400)
Change in income and sales tax liabilities	(666,600)	(235,400)
Change in accrued expenses and other current liabilities	8,201,500	319,500
Net cash provided by operating activities	9,916,200	11,643,600
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(1,932,000)	(2,822,200)
Proceeds from sale of property and equipment	3,000	29,500
Net cash used in investing activities	(1,929,000)	(2,792,700)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments on long-term debt	(187,700)	(187,200)
Proceeds from issuance of stock	110,000	112,400
Cash dividends paid	(4,991,700)	(4,439,600)
Purchases of treasury stock and repurchases of common stock from employees and directors for minimum tax withholdings	(6,022,200)	(1,428,400)
Excess tax benefit from stock-based compensation	1,172,600	905,300
Net cash used in financing activities	(9,919,000)	(5,037,500)
Net (decrease) increase in cash and cash equivalents	(1,931,800)	3,813,400
CASH AND CASH EQUIVALENTS, beginning of period	11,467,900	4,468,000
CASH AND CASH EQUIVALENTS, end of period	$ 9,536,100	$ 8,281,400