XML 34 R21.htm IDEA: XBRL DOCUMENT v2.4.0.6
Aircraft and Aircraft Engines Held for Lease (Details) (USD $)
 3 Months Ended 6 Months Ended 6 Months Ended 6 Months Ended 3 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Dec. 31, 2011
Jun. 30, 2012
Bombardier Dash-8-300 [Member]
Dec. 31, 2011
Bombardier Dash-8-300 [Member]
Jun. 30, 2012
Fokker 100 [Member]
Dec. 31, 2011
Fokker 100 [Member]
Jun. 30, 2012
Fokker 50 [Member]
May 31, 2012
Fokker 50 [Member]
Dec. 31, 2011
Fokker 50 [Member]
Jun. 30, 2012
General Electric CF34-8E5 engine [Member]
Dec. 31, 2011
General Electric CF34-8E5 engine [Member]
Jun. 30, 2012
Bombardier Dash-8-Q400 [Member]
Dec. 31, 2011
Bombardier Dash-8-Q400 [Member]
Jun. 30, 2012
Saab 340B [Member]
Apr. 30, 2012
Saab 340B [Member]
Dec. 31, 2011
Saab 340B [Member]
Jun. 30, 2012
Saab 340B Plus [Member]
Dec. 31, 2011
Saab 340B Plus [Member]
Jun. 30, 2012
deHavilland DHC-8-100 [Member]
Dec. 31, 2011
deHavilland DHC-8-100 [Member]
Jun. 30, 2012
deHavilland DHC-6 [Member]
Dec. 31, 2011
deHavilland DHC-6 [Member]
Jun. 30, 2012
Saab 340 A [Member]
Dec. 31, 2011
Saab 340 A [Member]
Aircraft and aircraft engines held for lease [Abstract]                                                      
Number owned           9 8 7 7 14   14 3 3 3 1 6   6 2 2 1 2 1 1 1 1
Percentage of net book value           25.00% 23.00% 23.00% 28.00% 15.00%   18.00% 7.00% 8.00% 19.00% 8.00% 6.00%   6.00% 3.00% 4.00% 1.00% 4.00% 1.00% 1.00% 0.00% 0.00%
Number of aircraft for which purchase agreement executed                             2                        
Gain on sale of aircraft                                           $ 873,500          
Number of aircraft returned                                   1                  
Term of re-leased aircraft               36 months                                      
Number of aircraft returned by lessees that declared bankruptcy                     6             4                  
Bad debt expense 310,300 0 310,300 0           310,300                                  
Number of aircraft delivered                                 1                    
Percentage of total net book value off lease 17.00%   17.00%                                                
Number of entity aircraft off lease 14   14         2   6             6                    
Allowance for doubtful accounts receivable 1,924,400   1,924,400   1,924,400                                            
Amount customer has agreed to pay over three years $ 1,270,000   $ 1,270,000                                                
Number of years that the memorandum of understanding will be collected     3 years