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Commitments And Contingencies (Details) (USD $) In Thousands, unless otherwise specified | 9 Months Ended | 0 Months Ended |
--- | --- | --- | ---
Jun. 30, 2012 | Jun. 30, 2012 Ward Transformer Site [Member] respparties | Aug. 07, 2012 TekWorks [Member] | Aug. 05, 2011 TekWorks [Member] respparties | Jun. 30, 2012 Minimum [Member] | Jun. 30, 2012 Maximum [Member]
Site Contingency [Line Items] |  |  |  |  |  |
Site Contingency, Number of Other Potentially Responsible Parties, commenced clean up work |  | 4 |  |  |  |
Loss Contingency, Number of Defendants |  | 50 |  | 8 |  |
Accrued Insurance | $ 5,702 |  |  |  |  |
Reserve for construction defect liabilities | 389 |  |  |  |  |
Outstanding letters of credit that were utilized as collateral | 8,882 |  |  |  |  |
Estimated cost of completion of bonded project | 67,290 |  |  |  |  |
Outstanding amount to collateralize our obligations | 1,000 |  |  |  |  |
Outstanding letters of credit was to collateralize vendors | 630 |  |  |  |  |
Settlement agreement with regard to collateral held by a surety | 2,000 |  |  |  |  |
Loss Contingency, Settlement Agreement, Consideration | 2,200 |  |  |  |  |
Right to receive compensation in an event of default | 2,450 |  |  |  |  |
Receipt of payments | 175 |  |  |  |  |
Risk of loss from collection of debt |  |  |  |  | 0 | 1,825
Outstanding receivable balance | 1,825 |  |  |  |  |
Loss Contingency, Settlement Agreement, Date |  |  | 2012-08-07 |  |  |
Loss Contingency Settlement Agreement Consideration 1 |  |  | 1,250 |  |  |
Accrued Liability Related To Legal Settlements | $ 1,230 |  |  |  |  |

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