Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss	Non-controlling Interests	Total
Balance at Dec. 31, 2018	$ 4	$ 259,132	$ (129,930)	$ (1,295)	$ 2,211	$ 130,122
Balance (in shares) at Dec. 31, 2018	42,669
Issuance of common stock under stock incentive plans		6				6
Issuance of common stock under stock incentive plans (in shares)	1,310
Shares withheld for taxes		(32,907)				(32,907)
Stock-based compensation expense		2,574				2,574
Net loss			(5,153)		(86)	(5,239)
Other comprehensive (loss) income				(22)	4	(18)
Balance at Mar. 31, 2019	$ 4	228,805	(135,083)	(1,317)	2,129	94,538
Balance (in shares) at Mar. 31, 2019	43,979
Balance at Dec. 31, 2019	$ 4	234,638	(140,973)	(1,426)	1,238	$ 93,481
Balance (in shares) at Dec. 31, 2019	44,224					44,224
Issuance of common stock under stock incentive plans		185				$ 185
Issuance of common stock under stock incentive plans (in shares)	90
Shares withheld for taxes		(461)				(461)
Stock-based compensation expense		1,686				1,686
Non-controlling interest distributions					(262)	(262)
Net loss			(4,633)		(92)	(4,725)
Other comprehensive (loss) income				(1,019)	68	(951)
Balance at Mar. 31, 2020	$ 4	$ 236,048	$ (145,606)	$ (2,445)	$ 952	$ 88,953
Balance (in shares) at Mar. 31, 2020	44,314					44,314