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Net Loss Per Share | 6 Months Ended
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Jun. 30, 2021
Earnings Per Share [Abstract] |
Net Loss Per Share | Note 3. Net Loss Per Share Basic net loss per share is calculated by dividing net loss by the weighted average shares of common stock outstanding for the period. Diluted net loss per share is calculated by dividing net loss by the weighted average shares of common stock outstanding for the period plus amounts representing the dilutive effect of securities that are convertible into common stock. The Company calculates diluted loss per common share using the treasury stock method. The following table presents the computation of net loss per share (in thousands except per share data):
|  | Three months ended June 30, |  |  | Six months ended June 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  | $ | (2,609 | ) |  | $ | (736 | ) |  | $ | (2,372 | ) |  | $ | (1,938 | )
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Basic weighted average common shares outstanding |  |  | 10,026 |  |  |  | 9,683 |  |  |  | 9,948 |  |  |  | 9,686 |
Plus dilutive effect of potential common shares |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Diluted weighted average common shares outstanding |  |  | 10,026 |  |  |  | 9,683 |  |  |  | 9,948 |  |  |  | 9,686 |
Net loss per share: |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | (0.26 | ) |  | $ | (0.08 | ) |  | $ | (0.24 | ) |  | $ | (0.20 | )
Diluted |  | $ | (0.26 | ) |  | $ | (0.08 | ) |  | $ | (0.24 | ) |  | $ | (0.20 | )
Potentially dilutive securities (in common stock equivalent shares) not included in the calculation of diluted net loss per share because to do so would be anti-dilutive are as follows (in thousands):
|  | Three months ended June 30, |  |  | Six months ended June 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Stock options and restricted stock |  |  | 1,307 |  |  |  | 1,847 |  |  |  | 1,318 |  |  |  | 1,762 |
Warrants outstanding |  |  | 4 |  |  |  | 51 |  |  |  | 25 |  |  |  | 51 |
Employee Stock Purchase Plan shares |  |  | — |  |  |  | — |  |  |  | 2 |  |  |  | — |
Total common stock equivalent shares |  |  | 1,311 |  |  |  | 1,898 |  |  |  | 1,345 |  |  |  | 1,813 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257 + Details
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