Warranty Provisions (Tables)

12 Months Ended

Mar. 31, 2018

Product Warranties Disclosures [Abstract]

Schedule of Product Warranty Liability

Changes in the Company’s warranty provision are presented in the following table:

	Fiscal Year Ended
	March 31, 2018			March 31, 2017
Estimated warranty provision at beginning of year	$	223,700		$	292,500
Costs accrued for future estimated returns		1,239,186			1,248,670
Returns received		(1,216,046	)		(1,317,470	)
Estimated warranty provision at end of year	$	246,840		$	223,700