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Accounts Receivable
 9 Months Ended
Apr. 26, 2014
Receivables [Abstract]  
Accounts Receivable
Accounts Receivable
 
Accounts receivable consists of the following:
 
April 26, 2014
 
July 27, 2013
 
(Dollars in thousands)
Contract billings
$
220,425

 
$
239,498

Retainage and other receivables
13,322

 
12,833

Total
233,747

 
252,331

Less: allowance for doubtful accounts
(471
)
 
(129
)
Accounts receivable, net
$
233,276

 
$
252,202


 
The Company grants credit under normal payment terms, generally without collateral, to its customers. With respect to certain customers, the Company has statutory lien rights which may expedite its collection efforts. As of April 26, 2014, the Company had liens recorded of approximately $17.7 million for past due accounts receivable for a customer on certain rural projects funded in part by the American Recovery and Reinvestment Act of 2009. There were no material accounts receivable amounts representing claims or other similar items subject to uncertainty as of April 26, 2014 or July 27, 2013. The Company expects to collect the outstanding balance of accounts receivable, net, including retainage and amounts supplemented with liens, within the next twelve months.

The Company maintains an allowance for doubtful accounts for estimated losses resulting from the failure of its customers to make required payments. During the three and nine months ended April 26, 2014 and April 27, 2013, write-offs to the allowance for doubtful accounts, net of recoveries, were not material.