Geographical Information - Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Net Sales	$ 20,081,842	$ 24,304,945	$ 24,890,882	$ 26,141,456
North America [Member]
Segment Reporting Information [Line Items]
Net Sales	16,263,563	21,118,623	20,877,336	22,910,537
Europe [Member]
Segment Reporting Information [Line Items]
Net Sales	3,439,976	3,003,899	3,539,400	3,042,771
Australia [Member]
Segment Reporting Information [Line Items]
Net Sales	378,303	179,923	474,146	179,923
Others [Member]
Segment Reporting Information [Line Items]
Net Sales		$ 2,500		$ 8,225