Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Net income (loss)	$ 11,552	$ (7,529)	$ 5,059
Other comprehensive income:
Net unrealized loss	(671)
Total other comprehensive loss	(671)
Total comprehensive income (loss)	10,881	(7,529)	5,059
Less: comprehensive income attributive to non-controlling interest	200	1,132	195
Comprehensive income (loss) attributive to common stockholders	$ 10,681	$ (8,661)	$ 4,864