Income Taxes (Schedule of Actual Income Benefit from Continuing Operations) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Line Items]
Total income tax expense (benefit)	$ 282	$ 8	$ 461	$ 186	$ 20	$ 132	$ 54	$ 129	$ 937	$ 335	$ (595)
TRS Leasing, Inc [Member]
Income Tax Disclosure [Line Items]
Computed "expected" income tax (benefit) expense									403	191	546
State income taxes, net of Federal income tax (benefit) expense									62	40	47
(Decrease) increase in valuation allowance									(124)	29	(1,097)
Return to provision adjustments									431	(16)
Other									(10)	8	(145)
AMT											34
Total income tax expense (benefit)									$ 762	$ 252	$ (615)