Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
	Jun. 26, 2016	Jun. 28, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 80,500	$ 1,695,300
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,176,700	1,131,300
Non-cash stock-based compensation expense	115,800	131,700
Deferred income taxes and other	(201,800)	(136,400)
Change in trade accounts receivable	(3,000,700)	(3,904,100)
Change in product inventory	(4,391,600)	(5,656,000)
Change in prepaid expenses and other current assets	(37,300)	2,490,000
Change in trade accounts payable	7,457,500	8,247,000
Change in payroll, benefits and taxes	(895,300)	(196,700)
Change in income and sales tax liabilities	(269,100)	(221,300)
Change in accrued expenses and other current liabilities	89,500	(1,788,500)
Net cash provided by operating activities	124,200	1,792,300
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(590,800)	(906,400)
Net cash used in investing activities	(590,800)	(906,400)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments of debt issuance costs	(113,400)
Payments on long-term debt	(1,881,600)	(62,700)
Cash dividends paid	(1,661,800)	(1,653,400)
Purchases of treasury stock and repurchases of common stock from employees and directors for minimum tax withholdings	(187,600)	(826,900)
Excess tax benefit from stock-based compensation		510,400
Net cash used in financing activities	(3,844,400)	(2,032,600)
Net decrease in cash and cash equivalents	(4,311,000)	(1,146,700)
CASH AND CASH EQUIVALENTS, beginning of period	16,882,800	7,524,000
CASH AND CASH EQUIVALENTS, end of period	$ 12,571,800	$ 6,377,300