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Income Taxes - Provision for Income Tax (Benefit) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal			$ (57)
State and local		$ 30	20
Foreign		43	156
Total Current		73	119
Deferred:
Federal	$ 700	1,322	616
State and local		147	(86)
Foreign		60	46
Total before change in valuation allowance		1,529	576
Change in valuation allowance		(4,709)	(530)
Net deferred		(3,180)	46
Income tax (benefit) provision		$ (3,107)	$ 165

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