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Accounts Receivable (Notes) | 6 Months Ended
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Jan. 26, 2013
Receivables [Abstract] |
Accounts Receivable | Accounts Receivable Accounts receivable consists of the following:
| January 26, 2013 |  | July 28, 2012
| (Dollars in thousands)
Contract billings | $ | 214,372 |  |  | $ | 136,610 |
Retainage and other receivables | 13,320 |  |  | 5,448 |
Total | 227,692 |  |  | 142,058 |
Less: allowance for doubtful accounts | (279 | ) |  | (270 | )
Accounts receivable, net | $ | 227,413 |  |  | $ | 141,788 |
As of January 26, 2013, the Company expected to collect all retainage balances within the next twelve months. The allowance for doubtful accounts changed as follows:
| For the Three Months Ended |  | For the Six Months Ended
| January 26, 2013 |  | January 28, 2012 |  | January 26, 2013 |  | January 28, 2012
| (Dollars in thousands)
Allowance for doubtful accounts at beginning of period | $ | 278 |  |  | $ | 376 |  |  | $ | 270 |  |  | $ | 368 |
Bad debt expense, net | 23 |  |  | 32 |  |  | 32 |  |  | 68 |
Amounts recovered (charged) against the allowance | (22 | ) |  | 1 |  |  | (23 | ) |  | (27 | )
Allowance for doubtful accounts at end of period | $ | 279 |  |  | $ | 409 |  |  | $ | 279 |  |  | $ | 409 |

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- Definition The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5074-111524 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5162-111524 Reference 5: 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 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph k -Article 4 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 13 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5066-111524 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 9 + Details
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