Earnings (Loss) Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Numerator:
Net income (loss) from continuing operations	$ 2,626,000	$ 1,077,000	$ (2,582,000)	$ (1,096,000)
Net loss from discontinued operations	$ (325,000)	$ (344,000)	$ (684,000)	$ (1,029,000)
Denominator:
Weighted-average common shares outstanding (shares)	23,558	22,498	23,142	22,225
Dilutive Securities, Effect on Basic Earnings Per Share	$ 649,000	$ 263,000	$ 0	$ 0
Weighted Average Number of Shares Outstanding, Diluted	24,207	22,761	23,142	22,225
Basic loss per common share from continuing operations (in usd per share)	$ 0.11	$ 0.05	$ (0.12)	$ (0.05)
Basic loss per common share from discontinued operations (in usd per share)	(0.01)	(0.02)	(0.02)	(0.05)
Total basic loss per common share (in usd per share)	0.10	0.03	(0.14)	(0.10)
Diluted loss from continuing operations (in usd per share)	0.11	0.05	(0.11)	(0.05)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	(0.01)	(0.02)	(0.03)	(0.05)
Earnings Per Share, Diluted	$ 0.10	$ 0.03	$ (0.14)	$ (0.10)