Commitments And Contingencies (Details) (USD $)	3 Months Ended	12 Months Ended
	Dec. 31, 2012 respparties	Sep. 30, 2012 respparties
Site Contingency [Line Items]
Accrued Insurance	4,570,000
Reserve for construction defect liabilities	647,000
Estimated cost of completion of bonded project	70,196,000
Outstanding amount to collateralize our obligations	1,000,000
Outstanding letters of credit was to collateralize vendors	700,000
Outstanding letters of credit that were utilized as collateral	6,852,000
Ward Transformer Site [Member]
Site Contingency [Line Items]
Site Contingency, Number of Other Potentially Responsible Parties, commenced clean up work	4
Loss Contingency, Number of Defendants		50
TekWorks [Member]
Site Contingency [Line Items]
Loss Contingency, Number of Defendants	8
Loss Contingency, Settlement Agreement, Date	2012-08-23
Loss Contingency Settlement Agreement Consideration 1	1,250,000
Accrued Liability Related To Legal Settlements	1,230,000
Surety [Member]
Site Contingency [Line Items]
Settlement agreement with regard to collateral held by a surety	2,000,000
Loss Contingency, Settlement Agreement, Consideration	2,200
Receipt of payments	175,000
Outstanding receivable balance	0
Loss Contingency, Settlement Agreement, Date		2012-08-07
Accrued Liability Related To Legal Settlements	1,725,000
Loss Contingency, Settlement Agreement, Terms	We filed a motion to enter judgment on the note, and then on August 7, 2012, reached a new payment agreement with the surety. The amended agreement provided for additional collateral and called for the total settlement amount of $2,025 ($2,200 less the $175 already received) to be paid in monthly installments beginning September 30, 2012 through July 2014 with an interest rate of 12%.