Unaudited Consolidated Statements of Cash Flows (USD $)	6 Months Ended
	Sep. 30, 2012	Sep. 25, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 9,475,400	$ 8,114,400
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,495,100	2,330,700
Non-cash stock-based compensation expense	1,102,700	1,522,700
Deferred income taxes and other	(16,500)	366,900
Change in trade accounts receivable	(4,996,300)	(5,487,000)
Change in product inventory	(22,929,500)	(10,955,900)
Change in prepaid expenses and other current assets	(1,841,400)	(454,000)
Change in trade accounts payable	30,088,300	12,841,600
Change in payroll, benefits and taxes	(8,744,000)	2,292,600
Change in income and sales tax liabilities	(883,600)	(690,700)
Change in accrued expenses and other current liabilities	145,800	(50,900)
Net cash provided by operating activities	3,896,000	9,830,400
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property and equipment	(2,539,800)	(2,448,500)
Net cash used in investing activities	(2,539,800)	(2,448,500)
CASHFLOWS FROM FINANCING ACTIVITIES
Payments on long-term debt	(124,500)	(199,500)
Proceeds from issuance of common stock	90,900	211,100
Cash dividends paid	(2,889,500)	(1,939,300)
Purchases of treasury stock and repurchases of common stock from employees and directors for minimum tax withholdings	(1,799,000)	(655,700)
Excess tax benefit from stock-based compensation	2,140,200	471,600
Net cash used in financing activities	(2,581,900)	(2,111,800)
Net (decrease) increase in cash and cash equivalents	(1,225,700)	5,270,100
CASH AND CASH EQUIVALENTS, beginning of period	18,211,600	8,178,200
CASH AND CASH EQUIVALENTS, end of period	$ 16,985,900	$ 13,448,300