Notes Payable and Accrued Interest (Details Narrative) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Notes Payable [Abstract]
Aircraft impairment charges	$ 23,923,000		$ 23,923,000
Bad debt expense	3,918,000	$ 0	3,918,000	$ 0
Unused amount of the credit facility	$ 61,800,000		$ 61,800,000		$ 47,600,000
Weighted average interest rate on credit facility	5.81%		5.81%		5.92%
Outstanding balance excess	$ (9,400,000)		$ (9,400,000)