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Property and equipment, net | 9 Months Ended
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Sep. 30, 2023
Property, Plant and Equipment [Abstract] |
Property and equipment, net | Property and equipment, net consisted of the following (in thousands):
| September 30, |  | December 31,
| 2023 |  | 2022
Quantum computer systems | $ | 13,711 |  |  | $ | 13,714 |
Lab equipment | 6,838 |  |  | 6,666 |
Computer equipment | 3,614 |  |  | 3,545 |
Leasehold improvements | 1,075 |  |  | 1,075 |
Furniture and fixtures | 372 |  |  | 319 |
Construction-in-progress | 119 |  |  | 86 |
Total property and equipment | 25,729 |  |  | 25,405 |
Less: Accumulated depreciation | (23,850) |  |  | (23,111) |
Total Property and equipment, net | $ | 1,879 |  |  | $ | 2,294 |
Depreciation expense for the three month period ended September 30, 2023 and 2022 was $0.2 million and $0.3 million, respectively. Depreciation expense for the nine month period ended September 30, 2023 and 2022 was $0.7 million and $1.0 million, respectively. The Company has not acquired any property and equipment under capital leases. As of September 30, 2023 and December 31, 2022, substantially all of the Company’s long-lived assets, consisting of property and plant, net, and operating lease right-of-use assets, amount ing to $10.4 million and $11.4 million, respectively, are located in North America, principally in Canada.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//360/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 6 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480321/958-360-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480321/958-360-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480321/958-360-50-7 + Details
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