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Net Loss Per Share | 6 Months Ended
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Jun. 30, 2018
Earnings Per Share [Abstract] |
Earnings Per Share [Text Block] |
3. | Net Loss Per Share
Basic net loss per share excludes the effect of dilution and is computed by dividing net loss by the weighted-average number of shares outstanding for the period. Diluted net loss per share reflects the potential dilution that could occur if securities or other contracts to issue shares were exercised into shares. In calculating diluted net loss per share, the numerator is adjusted for the change in the fair value of the warrant liability (only if dilutive) and the denominator is increased to include the number of potentially dilutive common shares assumed to be outstanding during the period using the treasury stock method. The following table sets forth the reconciliation of the numerator and denominator used in the computation of basic and diluted net loss per common share for the three and six-months ended June 30, 2018 and 2017:
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
(in thousands, except per share amounts) |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss used for basic earnings per share |  | $ | (869 | ) |  | $ | (3,451 | ) |  | $ | (3,474 | ) |  | $ | (6,456 | )
Less change in fair value of warrant liability |  |  | — |  |  |  | (190 | ) |  |  | — |  |  |  | (612 | )
Net loss used for diluted earnings per share |  | $ | (869 | ) |  | $ | (3,641 | ) |  | $ | (3,474 | ) |  | $ | (7,068 | )
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic weighted-average outstanding common shares |  |  | 21,204 |  |  |  | 21,204 |  |  |  | 21,204 |  |  |  | 21,199 |
Effect of dilutive potential common shares resulting from options |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2 |
Effect of dilutive potential common shares resulting from warrants |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Weighted-average shares outstanding—diluted |  |  | 21,204 |  |  |  | 21,204 |  |  |  | 21,204 |  |  |  | 21,201 |
Net loss per common share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | (0.04 | ) |  | $ | (0.16 | ) |  | $ | (0.16 | ) |  | $ | (0.30 | )
Diluted |  | $ | (0.04 | ) |  | $ | (0.17 | ) |  | $ | (0.16 | ) |  | $ | (0.33 | )
The table below presents common shares underlying stock options and warrants that are excluded from the calculation of the weighted average number of common shares outstanding used for the calculation of diluted net loss per common share. These are excluded from the calculation due to their anti-dilutive effect for the three and six-months ended June 30, 2018 and 2017:
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
(in thousands) |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Weighted-average anti-dilutive common shares resulting from options |  |  | 3,658 |  |  |  | 2,437 |  |  |  | 3,327 |  |  |  | 2,324 |
Weighted-average anti-dilutive common shares resulting from warrants |  |  | 1,482 |  |  |  | 1,117 |  |  |  | 1,730 |  |  |  | 517 |
|  |  | 5,140 |  |  |  | 3,554 |  |  |  | 5,057 |  |  |  | 2,841 |

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- References No definition available. + Details
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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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Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration