Income Taxes - Deferred Taxes (Details) - USD ($)	Mar. 29, 2020	Mar. 31, 2019
Deferred tax assets :
Deferred compensation	$ 264,300	$ 267,300
Accrued vacation	469,100	312,300
Deferred rent	3,258,600	34,500
Allowance for doubtful accounts	1,130,900	488,000
Inventory reserves	2,794,200	1,406,100
Sales tax reserves	122,900	192,900
Sales return assets	1,200,400	478,600
Other liabilities		205,700
Net operating loss	275,400	141,600
Business interest limitation carryforward	259,300
Other assets	1,013,600	652,800
Total gross deferred tax assets	10,788,700	4,179,800
Valuation allowance	(2,047,300)	(141,600)
Total deferred tax assets	8,741,400	4,038,200
Deferred tax liabilities :
Depreciation and amortization	(419,200)	(3,094,000)
Sales return liabilities	(950,600)	(365,200)
Lease right of use	(3,232,900)
Prepaid expenses	(1,106,200)	(523,700)
Total deferred tax liabilities	(5,708,900)	(3,982,900)
Net Deferred Tax Assets	3,032,500	$ 55,300
Net operating loss carryforwards, Subject to expiration	$ 38,066,068