Accounts Receivable (Tables)

9 Months Ended

Apr. 27, 2013

Receivables [Abstract]

Schedule of Accounts Receivable

Accounts receivable consists of the following:

	April 27, 2013			July 28, 2012
	(Dollars in thousands)
Contract billings	$	222,148		$	136,610
Retainage and other receivables	12,082			5,448
Total	234,230			142,058
Less: allowance for doubtful accounts	(193		)	(270		)
Accounts receivable, net	$	234,037		$	141,788

Schedule of Allowance for Doubtful Accounts

The allowance for doubtful accounts changed as follows:

	For the Three Months Ended						For the Nine Months Ended
	April 27, 2013			April 28, 2012			April 27, 2013			April 28, 2012
	(Dollars in thousands)
Allowance for doubtful accounts at beginning of period	$	279		$	409		$	270		$	368
Bad debt expense, net	20			112			51			180
Amounts charged against the allowance	(106		)	(252		)	(128		)	(279		)
Allowance for doubtful accounts at end of period	$	193		$	269		$	193		$	269