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Share-based compensation (Tables) | 6 Months Ended
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Jun. 30, 2022
Share-Based Payment Arrangement [Abstract] |
Schedule of Components of Share-Based Compensation Expense | Components of share-based compensation expense are as follows:
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
(U.S. Dollars, in thousands) |  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Cost of sales |  | $ | 205 |  |  | $ | 209 |  |  | $ | 416 |  |  | $ | 387 |
Sales and marketing |  |  | 1,000 |  |  |  | 957 |  |  |  | 1,981 |  |  |  | 1,674 |
General and administrative |  |  | 2,958 |  |  |  | 2,607 |  |  |  | 6,176 |  |  |  | 5,136 |
Research and development |  |  | 297 |  |  |  | 134 |  |  |  | 219 |  |  |  | 431 |
Total |  | $ | 4,460 |  |  | $ | 3,907 |  |  | $ | 8,792 |  |  | $ | 7,628 |
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
(U.S. Dollars, in thousands) |  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Stock options |  | $ | 205 |  |  | $ | 398 |  |  | $ | 564 |  |  | $ | 1,059 |
Time-based restricted stock awards and units |  |  | 2,410 |  |  |  | 2,019 |  |  |  | 4,580 |  |  |  | 3,746 |
Market-based / performance-based restricted stock units |  |  | 1,497 |  |  |  | 1,053 |  |  |  | 2,941 |  |  |  | 1,950 |
Stock purchase plan |  |  | 348 |  |  |  | 437 |  |  |  | 707 |  |  |  | 873 |
Total |  | $ | 4,460 |  |  | $ | 3,907 |  |  | $ | 8,792 |  |  | $ | 7,628 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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