Property and Equipment - Summary of Property and Equipment (Details) - USD ($)	6 Months Ended	12 Months Ended
	Sep. 30, 2020	Mar. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 2,503,000	$ 2,418,000
Less: Accumulated depreciation	1,786,000	1,647,000
Property and equipment, net	717,436	771,349
Computer and Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 445,000	$ 445,000
Computer and Office Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Average useful life (in years)	5 years	5 years
Computer and Office Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Average useful life (in years)	7 years	7 years
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Average useful life (in years)	7 years	7 years
Property and equipment, gross	$ 98,000	$ 98,000
Warehouse Equipment [Member]
Property, Plant and Equipment [Line Items]
Average useful life (in years)	7 years	7 years
Property and equipment, gross	$ 195,000	$ 195,000
Molds and Tooling [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,765,000	$ 1,680,000
Molds and Tooling [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Average useful life (in years)	3 years	3 years
Molds and Tooling [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Average useful life (in years)	5 years	5 years