Property and Equipment, Net - Summary of Property and Equipment (Details) - USD ($)	9 Months Ended
	Dec. 31, 2017	Mar. 31, 2017
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 3,411,022	$ 3,155,246
Accumulated depreciation	2,895,666	2,742,441
Property and equipment, net	515,356	412,805
Computer and Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 286,928	285,650
Average useful life (in years)	5 years
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 96,718	4,312
Average useful life (in years)	7 years
Warehouse Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 238,471	238,471
Average useful life (in years)	7 years
Molds and Tooling [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 2,788,905	$ 2,626,813
Molds and Tooling [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Average useful life (in years)	3 years
Molds and Tooling [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Average useful life (in years)	5 years