Summary of significant accounting policies - Post-employment Benefits (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Accounting Policies [Abstract] | |||
| Severance pay | $ 4,096 | $ 2,436 | $ 2,043 |
| Maximum contribution percent of pretax salary (up to) | 50.00% | ||
| Maximum amount of contribution per employee | $ 18 | ||
| Additional contribution amount for employees over 50 | $ 6 | ||
| Employee contribution match, percent | 100.00% | ||
| Employer contribution percent of salary, maximum, percent | 4.00% | ||
| Company's matching contribution amount | $ 656 | $ 395 | $ 212 |
| X | ||||||||||
- Definition Defined Contribution Plan, Maximum Annual Contributions Per Employee, Additional Amount No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of cost for defined contribution plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. No definition available.
|
| X | ||||||||||
- Definition Percentage employer matches of the employee's percentage contribution matched. No definition available.
|
| X | ||||||||||
- Definition Maximum amount the employee may contribute to a defined contribution plan. No definition available.
|
| X | ||||||||||
- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. No definition available.
|
| X | ||||||||||
- Definition Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|