Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Summary of Significant Accounting Policies [Abstract]
Net income (loss) attributable to controlling interest	$ (725)	$ (462)	$ 2,264	$ 4,834
Less: warrant derivative gain		(811)	(225)	(2,494)
Less: deemed dividend for convertible preferred shares	(77)		(147)
Less: beneficial conversion feature			(1,125)
Diluted net (loss) income	$ (802)	$ (462)	$ 767	$ 2,340
Basic weighted-average common shares outstanding during the period	7,701	5,628	7,466	5,579
Add dilutive effects of warrants and non-vested shares of restricted stock			315	907
Diluted weighted-average common shares outstanding during the period	7,701	5,628	7,466	6,486
Basic net (loss) income per common share	$ (0.09)	$ (0.08)	$ 0.30	$ 0.87
Diluted net (loss) income per common share	$ (0.10)	$ (0.08)	$ 0.10	$ 0.36