Accounts receivable and allowance for bad debt (Tables)

3 Months Ended

Jul. 26, 2013

Accounts receivable and allowance for bad debt [Abstract]

Schedule of Accounts Receivables, Net

	July 26, 2013		April 26, 2013
Accounts receivable	$	40,702,937	$	39,998,483
Allowance for bad debt		(774,971)		(548,370)
	$	39,927,966	$	39,450,113