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OPERATING LEASES (Tables) | 12 Months Ended
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Dec. 31, 2023
OPERATING LEASES |
Schedule of Operating Leases | The following table sets forth data regarding the Company’s operating leases for the years ended December 31, 2021, 2022 and 2023:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year ended December 31, | ​
(U.S. dollars in thousands) | ​ | 2021 | ​ | 2022 | ​ | 2023 | ​
Operating lease costs | ​ | $ | 1,632 | ​ | $ | 1,398 | ​ | $ | 1,471 | ​
Cash paid for amounts included in the measurement of lease liabilities | ​ | ​ | 1,391 | ​ | ​ | 1,404 | ​ | ​ | 1,484 | ​
Weighted average remaining lease term (in years) | ​ | ​ | 8.9 | ​ | ​ | 8.2 | ​ | ​ | 6.8 | ​
Weighted average discount rate | ​ | ​ | 12.8 | % | ​ | 12.8 | % | ​ | 12.8 | %
​
Schedule of Maturity Analysis of Operating Leases | The following table sets forth a maturity analysis of the Company’s operating lease liabilities as of December 31, 2023: ​
​ | ​ | ​ | ​
(U.S. dollars in thousands) |  | December 31, 2023
2024 | ​ | $ | 1,409
2025 | ​ | $ | 1,397
2026 | ​ | $ | 1,125
2027 | ​ | $ | 1,044
2028 and thereafter | ​ | $ | 4,057
Total undiscounted cash flows | ​ | $ | 9,032
Less: imputed interest | ​ | $ | 3,002
Present value of operating lease liabilities | ​ | $ | 6,030
​

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-4 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-6 + Details
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