Summary of Significant Accounting Policies (Details Narrative) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	[1]
Accounting Policies [Line Items]
Percentage of reserves for customers			100.00%
Foreign financial institutions actual deposits	$ 1,596,000		$ 1,596,000		$ 54,000
Future inventory returns	1,348,000		1,348,000		479,000
Inventory reserves	223,220		223,220		280,000
Reserve for sales returns	2,050,486	$ 3,587,357	2,050,486	$ 3,587,357	726,000	$ 600,000
Advertising expense	1,328,000	1,026,000	2,877,000	2,650,000
Accrued cooperative advertising allowances	1,019,000		1,019,000		$ 207,000
Selling, general and administrative expenses	27,000	40,000	$ 64,000	138,000
Income tax, description			On December 22, 2017 the Tax Act was enacted which reduced the U.S. federal corporate tax rate from 35% to 21% effective January 1, 2018.
Federal income tax rate, percent			21.00%
Effective income tax rate					28.00%
Deferred tax assets, gross	515,000		$ 515,000		$ 937,000
Income tax benefit	367,255	$ 1,080,142	$ 422,000	$ 1,220,511
Percentage of tax benefits recognized likelihood of being realized			greater than 50%
Uncertain tax positions
Potential dilutive shares amounted			2,350,000	2,450,000
Liability for return of goods					247,000
Realizable value of estimated return of goods	$ 479,000		$ 479,000
Estimated sales amounts to be credited to customers due to inventory warranty and allowance programs					$ 726,000
March 31, 2019 [Member]
Accounting Policies [Line Items]
Effective income tax rate			22.00%
Minimum [Member]
Accounting Policies [Line Items]
Cooperative advertising allowance, percentage			1.00%
Maximum [Member]
Accounting Policies [Line Items]
Cooperative advertising allowance, percentage			13.00%

[1] The reserve for sales returns at the beginning of the period ended December 30,2017 has been adjusted to reflect the full retrospective adoption of ASC 606 effective April 1, 2018.