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Earnings per Share - Details of Earnings Per Share Calculations (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings per Share
Net loss	$ (2,025)	$ 4	$ (2,511)	$ (6,056)	$ (2,021)	$ (8,567)
Weighted average common shares outstanding:
Basic (in shares)	40,028		40,038		40,059	40,037
Incremental shares with dilutive effect:
Diluted (in shares)	40,028		40,038		40,059	40,037
Basic (in dollars per share)	$ (0.05)		$ (0.06)		$ (0.05)	$ (0.21)
Diluted (in dollars per share)	$ (0.05)		$ (0.06)		$ (0.05)	$ (0.21)

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