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INVESTMENT IN AN AFFILIATED COMPANY (Condensed Financial Information From FAvS Consolidated Balance Sheets and Statements of Operations) (Details) (First Aviation Services, Inc. [Member], USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
First Aviation Services, Inc. [Member]
      
Condensed financial information, balance sheets:      
Current assets $ 10,179 $ 31,090  
Long-term assets 8,954 9,742  
Total assets 19,133 40,832  
Current liabilities 6,522 31,476  
Long-term liabilities 4,471 4,196  
Total liabilities 10,993 35,672  
Condensed financial information, statements of operations:      
Net sales 23,445 21,579 20,515
Gross profit 6,182 9,202 8,626
Income (loss) from continuing operations (341) (1,476) 630
Net loss 3,158 (12,979) (94)
Loss attributable to common stockholders $ 2,821 $ (13,271) $ (345)