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Costs And Estimated Earnings On Uncompleted Contracts (Costs And Estimated Earnings On Uncompleted Contracts Accompanying Consolidated Balance Sheets) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Costs And Estimated Earnings On Uncompleted Contracts [Abstract]    
Costs and estimated earnings in excess of billings on uncompleted contracts $ 29,105 $ 27,864
Other current liabilities (Billings in excess of costs and estimated earnings on uncompleted contracts) (6,819) (9,242)
Costs and estimated earnings on uncompleted contracts $ 22,286 $ 18,622