Commitments And Contingencies (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended		3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013 Ward Transformer Site [Member] respparties	Jun. 30, 2013 TekWorks [Member] respparties	Jun. 30, 2013 Surety [Member]	Dec. 31, 2012 Surety [Member]	Jun. 24, 2013 Surety [Member]	Apr. 30, 2012 Surety [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	$ 3,858
Reserve for construction defect liabilities	543
Estimated cost of completion of bonded project	49,522
Outstanding amount to collateralize our obligations	999
Outstanding letters of credit was to collateralize vendors	200
Settlement agreement with regard to collateral held by a surety					2,000
Loss Contingency, Settlement Agreement, Consideration					2,200
Receipt of payments							300	175
Outstanding receivable balance						0
Loss Contingency, Settlement Agreement, Date					08/07/2012
Total settlement to be paid in monthly installments					2,200
Accrued Liability Related To Legal Settlements	1,425	0
Loss Contingency, Settlement Agreement, Terms					. On April 17, 2013, the Company filed the necessary documents to domesticate the agreed judgment against the surety in Virginia. Following these two actions, the surety proposed a new payment agreement. After negotiations, the Company entered an amended agreement with all defendants in exchange for payment of $300, which was received on June 24, 2013. The amended agreement provides for additional monthly installments, with final payment due June 30, 2014.
ValuationAllowancesAndReservesChargedToCostAndExpense						1,725
Outstanding letters of credit that were utilized as collateral	$ 6,852