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Net Income (Loss) Per Share (Tables) | 6 Months Ended
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Jun. 30, 2021
Earnings Per Share [Abstract] |
Computation of Basic and Diluted Net Income (Loss) Per Share | The numerators and denominators of the basic and diluted net income (loss) per share computations for our common stock are calculated as follows (in thousands, except per share amounts):
| Three Months Ended |  |  | Six Months Ended |
| June 30, |  |  | June 30, |
| 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Numerator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) | $ | 4,473 |  |  | $ | (51,579 | ) |  | $ | 5,364 |  |  | $ | (64,174 | )
Less: undistributed earnings allocated to participating securities |  | (333 | ) |  |  | - |  |  |  | (410 | ) |  |  | - |
Net income (loss) attributable to common stockholders, basic | $ | 4,140 |  |  | $ | (51,579 | ) |  | $ | 4,954 |  |  | $ | (64,174 | )
Less: Removal of change in fair value of warrant liability |  | (2,097 | ) |  |  | - |  |  |  | - |  |  |  | - |
Net income (loss) attributable to common stockholders, diluted | $ | 2,043 |  |  | $ | (51,579 | ) |  | $ | 4,954 |  |  | $ | (64,174 | )
Denominator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common stock outstanding, basic |  | 114,629 |  |  |  | 97,339 |  |  |  | 113,339 |  |  |  | 91,408 |
Effect of dilutive shares: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation plans |  | 1,630 |  |  |  | - |  |  |  | 1,639 |  |  |  | - |
Effect of dilutive warrants |  | 2,571 |  |  |  | - |  |  |  | - |  |  |  | - |
Weighted average common stock outstanding, diluted |  | 118,830 |  |  |  | 97,339 |  |  |  | 114,978 |  |  |  | 91,408 |
Outstanding Stock Options and Stock Awards Excluded from Calculation of Net Loss Per Share | The following were excluded from the calculation of diluted net income (loss) per share as the effect of their inclusion would have been anti-dilutive.
| Three months ended June 30, |  |  | Six months ended June 30, |
| 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Outstanding securities not included in diluted net income (loss) per share calculation (in thousands): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options and stock awards |  | 6,991 |  |  |  | 11,276 |  |  |  | 8,476 |  |  |  | 11,276 |
Series B Convertible Preferred Stock (as converted to common stock) |  | 4,140 |  |  |  | 4,140 |  |  |  | 4,140 |  |  |  | 4,140 |
Warrants (as exercisable into common stock) |  | - |  |  |  | 5,841 |  |  |  | 2,474 |  |  |  | 5,841 |
Convertible Notes (as converted to common stock) |  | 11,363 |  |  |  | - |  |  |  | 5,713 |  |  |  | - |
Total |  | 22,494 |  |  |  | 21,257 |  |  |  | 20,803 |  |  |  | 21,257 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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