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Note 2 - Income (Loss) Per Share | 9 Months Ended
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Sep. 30, 2022
Notes to Financial Statements |
Earnings Per Share [Text Block] | 2. Income (loss) per share Basic income (loss) per share is computed by dividing net income (loss) by the weighted average number of common shares outstanding during the period, in addition to restricted stock units ("RSUs") that are vested but not delivered and restricted stock. Diluted income (loss) per share reflects the potential dilution that could occur if securities or other contracts to issue common stock are exercised or converted into common stock and is calculated using the treasury stock method for stock options, restricted stock units, restricted stock, warrants and deferred common stock. Stock equivalent shares are excluded from the calculation in loss periods, as their effects would be anti-dilutive. For the three and nine months ended September 30, 2022 and 2021, basic and diluted income (loss) per share was as follows:
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  | $ | 3,113 |  |  | $ | (2,452 | ) |  | $ | (55,844 | ) |  | $ | (13,889 | )
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average shares outstanding |  |  | 79,898,219 |  |  |  | 78,441,740 |  |  |  | 79,620,308 |  |  |  | 77,866,621 |
Weighted average restricted shares vested not delivered |  |  | 1,694,097 |  |  |  | 1,691,666 |  |  |  | 1,707,331 |  |  |  | 1,887,041 |
Total basic weighted average shares outstanding |  |  | 81,592,316 |  |  |  | 80,133,406 |  |  |  | 81,327,639 |  |  |  | 79,753,662 |
Dilutive effect of assumed conversion of restricted stock units |  |  | 107,650 |  |  |  | — |  |  |  | — |  |  |  | — |
Total diluted weighted average shares outstanding |  |  | 81,699,966 |  |  |  | 80,133,406 |  |  |  | 81,327,639 |  |  |  | 79,753,662 |
Basic and diluted income (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.04 |  |  | $ | (0.03 | ) |  | $ | (0.69 | ) |  | $ | (0.17 | )
Diluted |  | $ | 0.04 |  |  | $ | (0.03 | ) |  | $ | (0.69 | ) |  | $ | (0.17 | )
Based upon the exercise price and the average stock price for the three and nine months ended September 30, 2022 and 2021, respectively, certain stock equivalents, including stock options and warrants, have been excluded from diluted weighted average share calculations due to their anti-dilutive nature.
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Restricted stock units |  |  | 1,220,790 |  |  |  | 2,814,788 |  |  |  | 1,780,022 |  |  |  | 2,814,788 |
Stock options |  |  | 2,139,000 |  |  |  | 2,204,000 |  |  |  | 2,139,000 |  |  |  | 2,204,000 |
Warrants |  |  | — |  |  |  | 833,333 |  |  |  | — |  |  |  | 833,333 |
Total anti-dilutive securities |  |  | 3,359,790 |  |  |  | 5,852,121 |  |  |  | 3,919,022 |  |  |  | 5,852,121 |

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