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v3.21.1

Stock-Based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2021
Share-based Payment Arrangement [Abstract] |
Schedule of stock option plans |
|  | Number of Options Outstanding |  |  | Weighted Average Exercise Price |
Outstanding at January 1, 2021 |  |  | 10,500 |  |  | $ | 29.61 |
Expired |  |  | (1,000 | ) |  |  | 61.10 |
Outstanding at March 31, 2021 |  |  | 9,500 |  |  | $ | 26.19 |

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- Definition Tabular disclosure of the change in stock options. + References No definition available. + Details
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