Accounts Receivable (Tables)

3 Months Ended

Oct. 27, 2012

Receivables [Abstract]

Schedule of Accounts Receivable

Accounts receivable consists of the following:

	October 27, 2012			July 28, 2012
	(Dollars in thousands)
Contract billings	$	148,911		$	136,610
Retainage and other receivables	5,161			5,448
Total	154,072			142,058
Less: allowance for doubtful accounts	(278		)	(270		)
Accounts receivable, net	$	153,794		$	141,788

Schedule of Allowance for Doubtful Accounts

The allowance for doubtful accounts changed as follows:

	For the Three Months Ended
	October 27, 2012			October 29, 2011
	(Dollars in thousands)
Allowance for doubtful accounts at beginning of period	$	270		$	368
Bad debt expense, net	9			36
Amounts charged against the allowance	(1		)	(28		)
Allowance for doubtful accounts at end of period	$	278		$	376