Income Taxes - Provision (Benefit) For Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Current tax provision
U.S. Federal	$ 69	$ 16
State and local	258	94
Total current tax provision	327	110
Deferred tax benefit
U.S. Federal	(356)	(421)
State and local	(253)	(324)
Total deferred tax benefit	(609)	(745)
Benefit from income taxes	$ (282)	$ (635)