Income Taxes Components of Income Tax Expense (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
Current Tax Provision (Benefit)
Federal									$ 860	$ 709	$ 4,076
State									197	0	(267)
Total Current Provision for Income Taxes, net									1,057	709	3,809
Deferred Provision (Benefit) for Income Taxes
Federal									0	0	85
State									0	0	(407)
Total Deferred Benefit for Income Taxes, net									0	0	(322)
Income Tax Expense (Benefit)	$ 622	$ (55)	$ 478	$ 12	$ 154	$ 206	$ 36	$ 313	$ 1,057	$ 709	$ 3,487