| Property, plant and equipment |
Property, plant and equipment: | | | | | | | | | | | | | | | | | December 31, 2023 | | December 31, 2022 | | Property, plant and equipment owned | | $ | 102,206 | | | $ | 70,344 | | | Right-of-use assets | | 14,119 | | | 12,017 | | | | $ | 116,325 | | | $ | 82,361 | |
10. Property, plant and equipment (cont'd): Property, plant and equipment owned | | | | | | | | | | | | | | | | Net carrying amounts | | December 31, 2023 | | December 31, 2022 | | Computer equipment | | $ | 1,405 | | | $ | 1,207 | | | Furniture and fixtures | | 1,436 | | | 1,323 | | | Leasehold improvements | | 2,245 | | | 1,550 | | | Production and test equipment | | 97,120 | | | 66,264 | | | | $ | 102,206 | | | $ | 70,344 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cost | December 31, 2022 | | Additions | | Disposals | | Transfers | | Effect of movements in exchange rates | | December 31, 2023 | | Building | $ | — | | | $ | 936 | | | $ | — | | | $ | — | | | $ | — | | | $ | 936 | | | Computer equipment | 6,741 | | | 745 | | | — | | | (130) | | | — | | | 7,356 | | | Furniture and fixtures | 2,406 | | | 328 | | | — | | | — | | | 30 | | | 2,764 | | | Leasehold improvements | 9,650 | | | 1,103 | | | — | | | — | | | 27 | | | 10,780 | | | Production and test equipment | 109,202 | | | 38,102 | | | (111) | | | (1,041) | | | (55) | | | 146,097 | | | $ | 127,999 | | | $ | 41,214 | | | $ | (111) | | | $ | (1,171) | | | $ | 2 | | | $ | 167,933 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Accumulated depreciation | December 31, 2022 | | Depreciation | | | | | | | | Disposals | | Impairment | | Transfers | | Effect of movements in exchange rates | | December 31, 2023 | | Building | $ | — | | | $ | — | | | | | | | | | — | | | $ | 936 | | | $ | — | | | $ | — | | | $ | 936 | | | Computer equipment | 5,534 | | | 491 | | | | | | | | | — | | | — | | | (73) | | | (1) | | | 5,951 | | | Furniture and fixtures | 1,083 | | | 245 | | | | | | | | | — | | | — | | | (12) | | | 12 | | | 1,328 | | | Leasehold improvements | 8,100 | | | 431 | | | | | | | | | — | | | — | | | 4 | | | — | | | 8,535 | | | Production and test equipment | 42,938 | | | 7,132 | | | | | | | | | (23) | | | 31 | | | (1,090) | | | (11) | | | 48,977 | | | $ | 57,655 | | | $ | 8,299 | | | | | | | | | $ | (23) | | | $ | 967 | | | $ | (1,171) | | | $ | — | | | $ | 65,727 | |
During the year ended December 31, 2023, impairment charges of $967,000 (2022 - $7,000) consist primarily of a write-down of assets of $936,000 (2022 - $nil), as the Corporation has decided to suspend investment in a planned facility in China (note 27), and an impairment loss of $31,000 (2022 - $7,000) for production and test equipment. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cost | December 31, 2021 | | Additions | | | | Impairment | | Transfers | | Effect of movements in exchange rates | | December 31, 2022 | | | | | | | | | | | | | | | | Computer equipment | $ | 6,852 | | | $ | 181 | | | | | $ | — | | | $ | (290) | | | $ | (2) | | | $ | 6,741 | | | Furniture and fixtures | 1,914 | | | 700 | | | | | — | | | (208) | | | — | | | 2,406 | | | Leasehold improvements | 9,450 | | | 388 | | | | | — | | | (185) | | | (3) | | | 9,650 | | | Production and test equipment | 77,644 | | | 32,663 | | | | | (7) | | | (1,109) | | | 11 | | | 109,202 | | | $ | 95,860 | | | $ | 33,932 | | | | | $ | (7) | | | $ | (1,792) | | | $ | 6 | | | $ | 127,999 | |
10. Property, plant and equipment (cont'd): Property, plant and equipment owned (cont'd) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Accumulated depreciation | December 31, 2021 | | Depreciation | | Transfers | | Effect of movements in exchange rates | | December 31, 2022 | | | | | | | | | | | | Computer equipment | $ | 5,253 | | | $ | 574 | | | $ | (290) | | | $ | (3) | | | $ | 5,534 | | | Furniture and fixtures | 1,152 | | | 139 | | | (208) | | | — | | | 1,083 | | | Leasehold improvements | 7,932 | | | 353 | | | (185) | | | — | | | 8,100 | | | Production and test equipment | 37,668 | | | 6,368 | | | (1,109) | | | 11 | | | 42,938 | | | $ | 52,005 | | | $ | 7,434 | | | $ | (1,792) | | | $ | 8 | | | $ | 57,655 | |
Right-of-use assets The Corporation leases certain assets under lease agreements, comprising primarily of leases of land and buildings, office equipment and vehicles (note 19). | | | | | | | | | | Net carrying amounts included in property, plant and equipment | December 31, 2023 | December 31, 2022 | | Property | $ | 13,691 | | $ | 11,487 | | | Equipment | 70 | | 116 | | | Vehicle | 358 | | 414 | | | $ | 14,119 | | $ | 12,017 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cost | December 31, 2022 | | Additions | | De-recognition | | | | Effect of movements in exchange rates | | December 31, 2023 | | Property | $ | 28,844 | | | $ | 5,676 | | | $ | (73) | | | | | $ | — | | | $ | 34,447 | | | Equipment | 188 | | | — | | | (11) | | | | | (1) | | | 176 | | | Vehicle | 637 | | | 150 | | | (135) | | | | | (15) | | | 637 | | | $ | 29,669 | | | $ | 5,826 | | | $ | (219) | | | | | $ | (16) | | | $ | 35,260 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Accumulated depreciation | December 31, 2022 | | Depreciation | | De-recognition | | | | | | Effect of movements in exchange rates | | December 31, 2023 | | Property | $ | 17,357 | | | $ | 3,382 | | | $ | (3) | | | | | | | $ | 21 | | | $ | 20,757 | | | Equipment | 72 | | | 41 | | | (7) | | | | | | | — | | | 106 | | | Vehicle | 223 | | | 109 | | | (58) | | | | | | | 4 | | | 278 | | | $ | 17,652 | | | $ | 3,532 | | | $ | (68) | | | | | | | $ | 25 | | | $ | 21,141 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cost | December 31, 2021 | | Additions | | De-recognition | | Transfer | | Effect of movements in exchange rates | | December 31, 2022 | | Property | $ | 26,427 | | | $ | 2,746 | | | $ | — | | | $ | (341) | | | $ | 12 | | | $ | 28,844 | | | Equipment | 175 | | | 13 | | | — | | | — | | | — | | | 188 | | | Vehicle | 372 | | | 290 | | | (25) | | | — | | | — | | | 637 | | | $ | 26,974 | | | $ | 3,049 | | | $ | (25) | | | $ | (341) | | | $ | 12 | | | $ | 29,669 | |
10. Property, plant and equipment (cont'd): Right-of-use assets (cont'd) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Accumulated depreciation | December 31, 2021 | | Depreciation | | De-recognition | | Transfer | | Effect of movements in exchange rates | | December 31, 2022 | | Property | $ | 14,590 | | | $ | 3,108 | | | $ | — | | | $ | (341) | | | $ | — | | | $ | 17,357 | | | Equipment | 36 | | | 36 | | | — | | | — | | | — | | | 72 | | | Vehicle | 142 | | | 87 | | | (6) | | | — | | | — | | | 223 | | | $ | 14,768 | | | $ | 3,231 | | | $ | (6) | | | $ | (341) | | | $ | — | | | $ | 17,652 | |
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