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Note 5 - Accounts Receivable, Concentrations of Credit Risk and Inventories (Detail) - Accounts Receivable, Net (USD $)
In Thousands, unless otherwise specified |
Nov. 30, 2011
|
Aug. 31, 2011
|
|---|---|---|
| Retainage | $ 17,271 | $ 16,992 |
| Total accounts receivable, including retainage, net | 732,117 | 772,242 |
|
Unbilled Revenues [Member]
|
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| Accounts Receivable | 10,366 | 23,116 |
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Trade Accounts Receivable [Member]
|
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| Accounts Receivable | $ 704,480 | $ 732,134 |