Organization and Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended			9 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Sep. 30, 2014 Aircraft	Dec. 31, 2014
Property Subject to or Available for Operating Lease [Line Items]
Aircraft and aircraft engines held for lease, net	$ 180,724,000			$ 186,762,600
Finance Leases [Abstract]
Interest earned on finance lease	0	83,700
Balance Sheets [Abstract]
Prepaid expenses and other	324,400			415,900
Total assets	195,355,300			197,670,500
Notes payable and accrued interest	126,105,400			129,486,200
Total liabilities and stockholders' equity	195,355,300			197,670,500
As Reported Previously [Member]
Balance Sheets [Abstract]
Prepaid expenses and other				4,520,300
Total assets				201,774,900
Notes payable and accrued interest				133,590,600
Total liabilities and stockholders' equity				201,774,900
As Adjusted [Member]
Balance Sheets [Abstract]
Prepaid expenses and other				415,900
Total assets				197,670,500
Notes payable and accrued interest				129,486,200
Total liabilities and stockholders' equity				197,670,500
Effect of Change [Member]
Balance Sheets [Abstract]
Prepaid expenses and other				(4,104,400)
Total assets				(4,104,400)
Notes payable and accrued interest				(4,104,400)
Total liabilities and stockholders' equity				(4,104,400)
Regional Jet Aircraft [Member]
Property Subject to or Available for Operating Lease [Line Items]
Number of aircraft held for lease			2
Number of aircraft held for sale	5			5
Turboprop Aircraft [Member]
Property Subject to or Available for Operating Lease [Line Items]
Number of aircraft held for lease			2
Number of aircraft held for sale	2			1
Sale of aircraft, carrying value	1,100,000
Regional Jet Aircraft and Turboprop Aircraft [Member] | Held-for-sale [Member]
Property Subject to or Available for Operating Lease [Line Items]
Impairment charge	0			15,612,300
Aircraft and aircraft engines held for lease, net				6,100,000
Regional Jet Aircraft and Turboprop Aircraft [Member] | Held-for-lease [Member]
Property Subject to or Available for Operating Lease [Line Items]
Impairment charge	0		3,124,200
Aircraft and aircraft engines held for lease, net			7,837,300
Recurring [Member]
Assets and Liabilities Measured and Recorded at Fair Value on a Recurring Basis [Abstract]
Money market funds included in cash and cash equivalents	1,744,600			1,044,300
Liabilities recorded at fair value	$ 0			$ 0