Warranty Provisions (Tables)

3 Months Ended

Jun. 30, 2017

Product Warranties Disclosures [Abstract]

Schedule of Product Warranty Liability

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

	Three Months Ended
	June 30, 2017			June 30, 2016
Estimated warranty provision at beginning of period	$	223,700		$	292,500
Costs accrued for future estimated returns		104,976			109,245
Returns received		(234,687	)		(208,482	)
Estimated warranty provision at end of period	$	93,989		$	193,263