Summary of Accounting Policies (Details Narrative) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Accounting Policies [Line Items]
Percentage of reserves for customers			100.00%
Foreign financial institutions actual deposits	$ 426,000		$ 426,000		$ 211,000
Future inventory returns	2,444,000		2,444,000		599,000
Inventory reserves	404,000		404,000		254,000
Reserve for sales returns	4,546,317	$ 2,050,486	4,546,317	$ 2,050,486	896,154	$ 726,000
Stock option expense	5,000	10,000	15,000	30,000
Advertising expense	2,040,000	1,328,000	3,820,000	2,877,000
Accrued cooperative advertising allowances	1,689,000		1,689,000		185,000
Research and development costs	13,000	27,000	$ 36,000	$ 64,000
Effective tax rate			22.00%	22.00%
Net deferred tax assets	1,053,000		$ 1,053,000		$ 758,000
Income Tax (provision) benefit	$ 240,042	$ (367,255)	$ 294,633	$ (422,000)
Percentage of tax benefits recognized likelihood of being realized			greater than 50%
Total potential dilutive shares from common stock options			2,250,000	2,350,000
Minimum [Member]
Accounting Policies [Line Items]
Cooperative advertising allowance, percentage			1.00%
Maximum [Member]
Accounting Policies [Line Items]
Cooperative advertising allowance, percentage			13.00%