Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Line Items]
Alternative minimum tax expense			$ 20,000	$ 35,000	$ 0
U.S. federal income tax rate			34.00%
Net operating loss carryforward for federal income tax purposes	$ 814,000		$ 814,000	$ 1,295,000
Dividends					$ 0
Tax expense resulted from the change in tax rate	304,000
Minimum [Member]
Income Tax Disclosure [Line Items]
Tax year subject to examination			2014
Maximum [Member]
Income Tax Disclosure [Line Items]
Tax year subject to examination			2017
Scenario, Plan [Member]
Income Tax Disclosure [Line Items]
U.S. federal income tax rate		21.00%
TRS Leasing, Inc [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforward for federal income tax purposes	$ 3,876,000		$ 3,876,000
TRS Leasing, Inc [Member] | Minimum [Member]
Income Tax Disclosure [Line Items]
Loss carryforwards expiration period			Dec. 31, 2027
TRS Leasing, Inc [Member] | Maximum [Member]
Income Tax Disclosure [Line Items]
Loss carryforwards expiration period			Dec. 31, 2034