Loss Per Share - Computation of Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Numerator:
Net loss from continuing operations	$ (972)	$ (2,695)	$ (1,589)	$ (4,822)
Income from discontinued operations, net of income taxes	0	0	0	1,020
Net loss available to common shareholders	$ (972)	$ (2,695)	$ (1,589)	$ (3,802)
Denominator:
Weighted average common shares outstanding, basic	93,658,567	92,776,846	93,416,496	92,778,583
Weighted average common shares outstanding – dilutive	93,658,567	92,776,846	93,416,496	92,778,583
Basic earnings per share:
Net loss from continuing operations (per share)	$ (0.01)	$ (0.03)	$ (0.02)	$ (0.05)
Net income from discontinued operations (per share)	0.00	0.00	0.00	0.01
Net loss available to common shareholders (per share)	(0.01)	(0.03)	(0.02)	(0.04)
Diluted earnings per share:
Net loss from continuing operations (per share)	(0.01)	(0.03)	(0.02)	(0.05)
Net income from discontinued operations (per share)	0.00	0.00	0.00	0.01
Net loss available to common shareholders (per share)	$ (0.01)	$ (0.03)	$ (0.02)	$ (0.04)
Stock Options
Denominator:
Incremental shares related to share-based compensation	0	0	0	0
Nonvested Shares
Denominator:
Incremental shares related to share-based compensation	0	0	0	0