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Net Income per Common Share - Potential Dilutive Stock Options On Weighted Average Shares Outstanding (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net Income per Common Share
Net income (loss) from continuing operations	$ 1,529	$ (251)	$ 5,339	$ (3,212)
Net income from discontinued operations, net of income taxes		5,252		3,280
Net income	$ 1,529	$ 5,001	$ 5,339	$ 68
Basic weighted average shares of common stock outstanding	74,552,545	70,641,938	74,481,281	68,896,059
Dilutive effect of share-based awards	345,975	402,590	360,814	393,290
Diluted weighted average common shares outstanding	74,898,520	71,044,528	74,842,095	69,289,349
Basic and diluted net income (loss) per common share:
Continuing operations	$ 0.02	$ 0.01	$ 0.07	$ (0.05)
Discontinued operations		0.06		0.05
Basic and diluted net income per common share	$ 0.02	$ 0.07	$ 0.07	$ 0.00

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