Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Mar. 29, 2020	Mar. 31, 2019	Apr. 01, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net (loss) income	$ (21,568,900)	$ 5,545,800	$ 5,195,400
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:
Depreciation and amortization	4,026,100	3,618,900	3,992,600
Goodwill impairment	11,677,700
Non-cash stock-based compensation expense	1,174,600	1,244,000	1,002,100
Deferred income taxes and other	(2,977,200)	665,200	(710,500)
Change in trade accounts receivable	11,097,800	(6,103,900)	(23,158,400)
Change in product inventory	2,697,400	477,600	(8,338,700)
Change in prepaid expenses and other current assets	(6,144,700)	(1,073,700)	(625,000)
Change in other assets and other liabilities	(251,400)	938,900	(2,155,600)
Change in trade accounts payable	905,300	5,073,600	13,459,700
Change in payroll, benefits and taxes	(1,671,200)	(2,361,600)	1,519,000
Change in income and sales tax liabilities	(298,200)	(1,590,200)	974,500
Change in accrued expenses and other current liabilities	2,240,900	1,812,100	(402,200)
Net cash provided by (used in) operating activities	908,200	8,246,700	(9,247,100)
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisition of property and equipment	(288,000)	(2,855,200)	(1,646,600)
Purchases of internal use software	(6,557,700)	(2,309,500)	(1,892,800)
Net cash used in investing activities	(6,845,700)	(5,164,700)	(3,539,400)
CASH FLOWS FROM FINANCING ACTIVITIES
Net borrowings from revolving line of credit	11,185,800	3,542,700	10,835,400
Proceeds from note receivable			75,000
Payments on debt	(2,300)	(27,300)	(26,700)
Proceeds from issuance of common stock	262,400	279,000	148,700
Cash dividends paid	(5,287,200)	(6,754,400)	(6,701,200)
Proceeds from exercise of stock options	680,600
Purchases of treasury stock and repurchases of stock from employees	(882,100)	(111,100)	(65,400)
Net cash provided by (used in) financing activities	5,957,200	(3,071,100)	4,265,800
Net increase (decrease in) cash and cash equivalents	19,700	10,900	(8,520,700)
CASH AND CASH EQUIVALENTS, beginning of period	30,300	19,400	8,540,100
CASH AND CASH EQUIVALENTS, end of period	$ 50,000	$ 30,300	$ 19,400