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v3.21.2

Summary of changes in outstanding options (Details) - USD ($) $ / shares in Units, $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options exercisable remaining term | 4 years 9 months 17 days |
Share-based Payment Arrangement, Option [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Options outstanding, shares | 104,755 | 120,089
Options outstanding, weighted avg exercise price | $ 37.93 | $ 35.33
Options outstanding remaining term | 5 years 1 month 4 days | 5 years 3 months 18 days
Options outstanding, weighted avg grant date fair value | $ 1,416 | $ 1,531
Options exercised, shares | (15,334) |
Options exercised, weighted avg exercise price | $ 17.54 |
Options exercised, weighted avg grant date fair value | $ (115) |
Options exercisable, shares | 92,407 |
Options exercisable, weighted avg exercise price | $ 36.87 |
Options exercisable, weighted avg grant date fair value | $ 1,212 |
Options vested, shares | 0 |
Options vested, weighted avg grant date fair value | $ 0 |

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