Net Income per Common Share - Potential Dilutive Stock Options On Weighted Average Shares Outstanding (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Net Income per Common Share
Net income	$ (3,121)	$ 882
Basic weighted average shares of common stock outstanding	66,022,202	60,672,133
Dilutive effect of share-based awards		469,955
Diluted weighted average common shares outstanding	66,022,202	61,142,088
Net income per share:
Basic and diluted	$ (0.05)	$ 0.01

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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