Acquisitions (Pro Forma Information) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018	Feb. 01, 2019
Acquired inventory and fixed assets			$ 17,207
NEEO AG
Revenue	$ 60,447	$ 59,306
Income (loss) from operations	(3,242)	(247)
Net income (loss)	$ (2,386)	$ (241)
Net income (loss) per common share:
Basic (in dollars per share)	$ (0.09)	$ (0.01)
Diluted (in dollars per share)	$ (0.09)	$ (0.01)

Per basic share amount of pro forma income from continuing operations, after tax, as if the business combination had been completed at the beginning of a period.

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Amount after tax of pro forma income from continuing operations as if the business combination had been completed at the beginning of a period.

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