Accounts Receivable (Tables)

9 Months Ended

Jan. 31, 2015

Receivables [Abstract]

Accounts receivable

	January 31, 2015			April 30, 2014
Trade receivables	$	2,872,774		$	3,757,408
Other receivables		132,599			125,490
Allowance for doubtful accounts and sales returns		(140,000	)		(220,000	)
	$	2,865,373		$	3,662,898