Reserve for Sales Returns - Schedule of Reserve for Sales Returns (Details) - USD ($)	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Reserve For Sales Returns
Reserve for sales returns at beginning of the period	$ 896,154	$ 726,000
Provision for estimated sales returns	3,543,813	1,883,366
Sales returns received	(1,209,322)	(1,142,739)
Reserve for sales returns at end of the period	$ 3,230,645	$ 1,466,627