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Long-term debt - CIBC Loan (Details) $ in Thousands, $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
Nov. 03, 2022 CAD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Sep. 26, 2023 USD ($)
Long-term debt |  |  |  |
Total initial gross proceeds |  |  | $ 7,273 |
Changes during the period |  |  |  |
Balance - Beginning of year |  | $ 7,174 |  |
Proceeds received, net |  |  | 7,124 |
Fair value of warrants |  |  | (129) |
Interest and accretion expense |  | 727 | 115 |
Foreign exchange |  | 115 | 108 |
Repayment |  | (912) | (44) |
Balance - End of year |  | 7,104 | 7,174 |
Less: Current portion |  | 2,104 | 523 |
Long-term portion |  | $ 5,000 | $ 6,651 |
CIBC loan |  |  |  |
Long-term debt |  |  |  |
Total initial gross proceeds | $ 10,000 |  |  |
Adjustment to interest rate basis (as a percent) | 2.00% |  |  |
Amount repaid | $ 208 |  |  |
Minimum percentage of revenue for the same fiscal quarter in the prior fiscal year as financial covenant | 15.00% |  |  | 15.00%
Unrestricted cash |  |  |  | $ 7,500

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