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Earnings Per Share | 12 Months Ended
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Dec. 31, 2018
Earnings Per Share [Abstract] |
Earnings Per Share | Note 7 − Earnings Per Share Basic earnings per share are based on the weighted average number of shares outstanding for a period. Diluted earnings per share are based upon the weighted average number of shares and potentially dilutive common shares outstanding. Potential common shares outstanding principally include stock options, under our stock plan and warrants. During 2018, 2017 and 2016 we incurred losses; therefore, the effect of any common stock equivalent would be anti-dilutive during those periods. The table below sets forth the basic and diluted loss per share calculations:
|  | Year Ended December 31, |
|  | 2018 |  |  | 2017 |  |  | 2016 |
Net loss |  | $ | (25,406 | ) |  |  | (17,278 | ) |  | $ | (28,569 | )
Basic and diluted weighted average number of shares outstanding |  |  | 62,986 |  |  |  | 58,354 |  |  |  | 55,985 |
Basic and diluted loss per share |  | $ | (0.40 | ) |  |  | (0.30 | ) |  | $ | (0.51 | )

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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 + Details
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