Income Taxes (Schedule of Components of Income Tax Expense (Benefit)) (Details) - USD ($) $ in Thousands	3 Months Ended							12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Line Items]
Total income tax expense (benefit)	$ 20	$ 132	$ 54	$ 129	$ (645)	$ 15	$ 35	$ 335	$ (595)	$ 125
TRS Leasing, Inc [Member]
Income Tax Disclosure [Line Items]
Federal: Current									33	90
Federal: Deferred								202	(615)
State and local: Current								(8)	12
State and local: Deferred								58	(45)
Total income tax expense (benefit)								$ 252	$ (615)	$ 90