Accounts receivable and allowance for bad debt (Tables)

12 Months Ended

Apr. 26, 2013

Accounts receivable and allowance for bad debt [Abstract]

Schedule of Accounts Receivables, Net

	April 26,		April 27,
	2013		2012
Accounts receivable	$	39,998,483	$	29,851,433
Allowance for bad debt		(548,370)		(584,586)
	$	39,450,113	$	29,266,847