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Accounts Receivable (Tables) | 9 Months Ended
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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 |

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- Definition Tabular disclosure of the allowance for doubtful accounts roll forward. + References No definition available. + Details
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- Details
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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3, 4 -Article 5 + Details
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