Significant Accounting Policies (Tables)

3 Months Ended

Jul. 31, 2015

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

		July 31,		April 30,
		2015		2015
Balance of allowance for doubtful accounts, beginning of period/year	$	294,719	$	240,681
Bad debt provision		52,727		628,113
Write-off of receivables		–		(574,075	)
Balance of allowance for doubtful accounts, end of period/year	$	347,446	$	294,719