Summary of Significant Accounting Policies - Reconciliation of Basic and Diluted Income (Loss) per Share (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Numerator:
Net income from continuing operations	$ 1,657	$ 4,398	$ 2,192	$ 1,224	$ (65)	$ 256	$ (384)	$ (4,053)	$ 9,471	$ (4,246)	$ (5,907)
(Loss) income from discontinued operations	(373)	(142)	(81)	(95)	(685)	(659)	(238)	(17)	(691)	(1,599)	3,546
Net income (loss)	$ 1,284	$ 4,256	$ 2,111	$ 1,129	$ (750)	$ (403)	$ (622)	$ (4,070)	$ 8,780	$ (5,845)	$ (2,361)
Denominator:
Basic weighted average common shares outstanding (in shares)									10,413	7,816	4,779
Potential common shares from options and warrants (in shares)									339	0	0
Diluted weighted average shares (in shares)									10,752	7,816	4,779