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The aggregate intrinsic value in the table above is based on our closing stock price of $4.40 on the last business day for the year ended December 31, 2021. (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Shares exercised | 535,100 |
Cash received | $ 234 | $ 37
Share-based Payment Arrangement, Option [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Shares exercised | 535,100 | 84,500
Total intrinsic value | $ 1,169 | $ 10
Cash received | $ 234 | $ 37

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