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Net Income (Loss) Per Share	3 Months Ended
	Mar. 31, 2020
Earnings Per Share [Abstract]
Net Income (Loss) Per Share	11. Net Income (Loss) Per Share Basic net income (loss) per share of common stock is computed based upon the number of weighted average shares of common stock outstanding as defined by ASC Topic 260, Earnings Per Share. Diluted net income (loss) per share of common stock includes the dilutive effects of stock options and stock equivalents. To the extent stock options are antidilutive, they are excluded from the calculation of diluted net income (loss) per share of common stock. For the three months ended March 31, 2020, 773,375 of shares issuable upon the exercise of outstanding stock options were not included in the computation of diluted net income (loss) per share for continuing operations because their inclusion would be antidilutive. For the three months ended March 31, 2019, 1,062,745 shares issuable upon the exercise of outstanding stock options and 79,286 shares of unvested restricted stock were not included in the computation of diluted net income per share because their inclusion would be anti-dilutive.

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- Definition

The entire disclosure for earnings per share.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-URI http://asc.fasb.org/topic&trid=2144383

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