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Aircraft and Aircraft Engines Held for Lease or Sale (Details)
1 Months Ended 3 Months Ended 9 Months Ended
Oct. 31, 2015
USD ($)
Aircraft
Lease
Oct. 31, 2015
Aircraft
Lease
Sep. 30, 2015
USD ($)
Engine
Asset
Aircraft
Sep. 30, 2014
USD ($)
Aircraft
Sep. 30, 2015
USD ($)
Asset
Aircraft
Sep. 30, 2014
USD ($)
Dec. 31, 2014
Aircraft
Aircraft and aircraft engines held for lease or sale [Abstract]              
Re-lease opportunities for the off-lease aircraft     5.00%   5.00%    
Proceeds from the sale of airframe parts | $         $ 1,835,300 $ 273,800  
Held for Sale [Member]              
Aircraft and aircraft engines held for lease or sale [Abstract]              
Proceeds from the sale of airframe parts | $     $ 19,000 $ 48,100      
Turboprop Aircraft [Member]              
Aircraft and aircraft engines held for lease or sale [Abstract]              
Number owned     18   18   25
Percentage of net book value     48.00%   48.00%   52.00%
Number of aircraft held for sale     2   2    
Gain on sale of aircraft and parts from an engine | $       $ 1,809,400      
Number of aircraft sold   2   3      
Number of assets lease term extended | Asset     2        
Number of off leased assets leased | Asset         3    
Turboprop Aircraft [Member] | Subsequent Event [Member]              
Aircraft and aircraft engines held for lease or sale [Abstract]              
Gain on sale of aircraft and parts from an engine | $ $ 5,700,000            
Number of aircraft sold 2            
Turboprop Airframe [Member] | Held for Sale [Member]              
Aircraft and aircraft engines held for lease or sale [Abstract]              
Number of aircraft held for sale     2   2    
Regional Jet Aircraft [Member]              
Aircraft and aircraft engines held for lease or sale [Abstract]              
Number owned     8   8   8
Percentage of net book value     47.00%   47.00%   43.00%
Regional Jet Aircraft [Member] | Held for Sale [Member]              
Aircraft and aircraft engines held for lease or sale [Abstract]              
Number of aircraft held for sale     5   5    
Number of signed lease and deposit, expects to deliver it pursuant to a finance lease | Lease 1 1          
Regional Jet Aircraft [Member] | Held for Sale [Member] | Subsequent Event [Member]              
Aircraft and aircraft engines held for lease or sale [Abstract]              
Number of signed lease and deposit, expects to deliver it pursuant to a finance lease | Lease 1 1          
Engines [Member]              
Aircraft and aircraft engines held for lease or sale [Abstract]              
Number owned     5   5   5
Percentage of net book value     5.00%   5.00%   5.00%
Number of off leased assets leased | Engine     3