Warranty Provisions (Tables)

6 Months Ended

Sep. 30, 2017

Product Warranties Disclosures [Abstract]

Schedule of Product Warranty Liability

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

	Six Months Ended
	September 30, 2017			September 30, 2016
Estimated warranty provision at beginning of period	$	223,700		$	292,500
Costs accrued for future estimated returns		1,101,597			874,402
Returns received		(395,129	)		(307,030	)
Estimated warranty provision at end of period	$	930,168		$	859,872