Summary of Significant Accounting Policies (Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounting Policies [Abstract]
Current federal (expense) benefit	$ 0	$ 726	$ 0
Current state (expense) benefit	(203)	(196)	(176)
Current (expense) benefit	(203)	530	(176)
Deferred federal (expense) benefit	(319)	0	(155)
Deferred state (expense) benefit	(163)	50	(68)
Deferred tax asset valuation allowance	482	(4,641)	0
Deferred (expense) benefit	$ 0	$ (4,591)	$ (223)