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INVESTMENT IN AN AFFILIATED COMPANY (Acquisition of Stocks of FAvS) (Narrative) (Details) (USD $)
 1 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 12 Months Ended 1 Months Ended
Jun. 30, 2011
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Jun. 30, 2011
Payment Guarantee [Member]
Dec. 31, 2012
Payment Guarantee [Member]
Oct. 01, 2010
Payment Guarantee [Member]
Dec. 04, 2009
Payment Guarantee [Member]
Dec. 31, 2013
First Aviation Services, Inc. [Member]
Dec. 31, 2012
First Aviation Services, Inc. [Member]
Dec. 31, 2011
First Aviation Services, Inc. [Member]
Dec. 31, 2010
First Aviation Services, Inc. [Member]
Dec. 31, 2009
First Aviation Services, Inc. [Member]
Dec. 04, 2009
First Aviation Services, Inc. [Member]
Mar. 18, 2013
First Aviation Services, Inc. [Member]
API [Member]
Jun. 30, 2012
First Aviation Services, Inc. [Member]
Convertible Debt [Member]
Jun. 30, 2011
First Aviation Services, Inc. [Member]
Chief Executive Officer [Member]
Mar. 31, 2013
First Aviation Services, Inc. [Member]
Term Loan [Member]
Business Acquisition [Line Items]                                    
Shares of investee acquired                           288,334        
Investee ownership percentage                 29.36%   30.30% 36.60%   37.00%        
Value of preferred stocks owned                           $ 750,000        
Preferred stock, cash dividend rate                         12.00%          
Preferred stock, stock dividend rate                         15.00%          
Investment in affiliated company     3,300,000                              
Maximum guarantee           4,600,000 6,600,000 7,000,000                    
Amount of guarantee secured           2,300,000                        
Monthly amortization related to guarantee agreement         200,000                          
Payment for settlement 1,400,000                                  
Shares issued                                 166,113  
Market price of stock                 $ 6.60 $ 7.0 $ 5.45           $ 18.06  
Shares issued to directors                                 3,000,000  
Gain from dilution of interests in affiliated company         240,000               240,000              
Impairment of equity method investment                    (3,300,000)    1,813,000            
Loss from equity method investments   1,025,000 (3,756,000) 331,000           (456,000)                
Repayments of lines of credit                             15,900     4,000,000
Original amount of debt instrument                               3,000,000    
Exercise price of warrants issued                               7,000    
Purchase price                             16,500      
Percentage of post-exercise shareholders' equity callable by warrant                               15.00%    
Ownership percentage                             3.00%      
Write down                             $ 11,500