Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Tax Disclosure [Line Items]
Income tax expense (benefit)	$ 186	$ 129
TRS Leasing, Inc [Member]
Income Tax Disclosure [Line Items]
Income tax expense (benefit)	$ 186	$ 129
Combined federal and state effective tax rate	26.00%
Net operating loss carryforward for federal income tax purposes	$ 4,830
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