Income Taxes (Details) - USD ($)	1 Months Ended			3 Months Ended		9 Months Ended
	Aug. 31, 2020	Mar. 31, 2019	Mar. 31, 2013	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Expense (Benefit) [Abstract]
Income tax expense (benefit)				$ (30,000)	$ 0	$ (28,000)	$ (29,000)
Paid federal income taxes attributable to alternative minimum tax rate			$ 501,000
Federal [Member]
Income Tax Expense (Benefit) [Abstract]
Income tax refund received	$ 5,401,000
Alternative Minimum Tax (AMT) Credit Carryforward [Member]
Income Tax Expense (Benefit) [Abstract]
Income tax refund received	$ 30,000	$ 30,000