Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Mar. 31, 2019	Apr. 01, 2018	Mar. 26, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 5,545,800	$ 5,195,400	$ 1,445,100
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	3,618,900	3,992,600	4,238,900
Loss on sale of property and equipment			114,500
Non-cash stock-based compensation expense	1,244,000	1,002,100	434,400
Deferred income taxes and other	1,604,100	(2,866,100)	(788,600)
Change in trade accounts receivable	(6,103,900)	(23,158,400)	(6,388,200)
Change in product inventory	477,600	(8,338,700)	(10,080,400)
Change in prepaid expenses and other current assets	(1,073,700)	(625,000)	2,053,000
Change in trade accounts payable	5,073,600	13,459,700	11,595,400
Change in payroll, benefits and taxes	(2,361,600)	1,519,000	1,844,200
Change in income and sales tax liabilities	(1,590,200)	974,500	(107,700)
Change in accrued expenses and other current liabilities	1,812,100	(402,200)	(1,309,300)
Net cash provided by (used in) operating activities	8,246,700	(9,247,100)	3,051,300
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisition of property and equipment	(2,855,200)	(1,646,600)	(730,200)
Purchases of internal use software licenses	(2,309,500)	(1,892,800)	(1,832,800)
Net cash used in investing activities	(5,164,700)	(3,539,400)	(2,563,000)
CASH FLOWS FROM FINANCING ACTIVITIES
Net borrowings from revolving line of credit	3,542,700	10,835,400
Proceeds from note receivable		75,000
Payments of debt issuance costs			(218,200)
Payments on long-term debt	(27,300)	(26,700)	(1,901,300)
Proceeds from issuance of common stock	279,000	148,700	137,600
Cash dividends paid	(6,754,400)	(6,701,200)	(6,656,700)
Purchases of treasury stock and repurchases of stock from employees	(111,100)	(65,400)	(192,400)
Net cash (used in) provided by financing activities	(3,071,100)	4,265,800	(8,831,000)
Net increase (decrease) in cash and cash equivalents	10,900	(8,520,700)	(8,342,700)
CASH AND CASH EQUIVALENTS, beginning of period	19,400	8,540,100	16,882,800
CASH AND CASH EQUIVALENTS, end of period	$ 30,300	$ 19,400	$ 8,540,100