Reserve for Sales Returns - Schedule of Reserve for Sales Returns (Details) - USD ($)	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Reserve For Sales Returns
Reserve for sales returns at beginning of the fiscal year	$ 726,000	$ 600,000
Provision for estimated sales returns	3,997,946	3,775,846
Sales returns received	(3,827,792)	(3,649,846)
Reserve for sales returns at end of the year	$ 896,154	$ 726,000