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Leases (Tables) | 12 Months Ended
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Dec. 31, 2023
Leases [Abstract] |
Net Operating Lease Expense | For the years ended December 31, 2023 and 2022, the net operating lease expenses were as follows (in thousands):
|  | Years ended December 31, |
|  | 2023 |  |  | 2022 |
Operating lease expense |  | $ | 3,399 |  |  | $ | 595 |
Sublease income |  |  | (84 | ) |  |  | (84 | )
Variable lease expense |  |  | 136 |  |  |  | 150 |
Total lease expense |  | $ | 3,451 |  |  | $ | 661 |
Operating Lease Right-of-use Assets and Liabilities | The tables below show the beginning balances of the operating ROU assets and lease liabilities as of January 1, 2023 and the ending balances as of December 31 2023, including the changes during the period (in thousands).
|  | Operating Lease ROU Assets |
Operating lease ROU assets at January 1, 2023 |  | $ | 1,030 |
Recognition of ROU asset for Somerville Sublease |  |  | 34,410 |
Adjustment to ROU asset for remeasurement of Somvervile Sublease liability |  |  | (1,620 | )
Amortization of operating lease ROU assets |  |  | (1,039 | )
Operating lease ROU assets at December 31, 2023 |  | $ | 32,781 |
|  | Operating Lease Liabilities |
Operating lease liabilities at January 1, 2023 |  | $ | 1,182 |
Recognition of lease liability for Somerville Sublease |  |  | 34,169 |
Accretion of interest for Somerville Sublease |  |  | 1,858 |
Adjustment to lease liablity due to remeasurement of Somerville Sublease |  |  | (1,620 | )
Principal payments on operating lease liabilities |  |  | (519 | )
Operating lease liabilities at December 31, 2023 |  |  | 35,070 |
Less non-current portion |  |  | 32,854 |
Current portion at December 31, 2023 |  | $ | 2,216 |
Maturities of Operating Lease Liabilities | The maturities of the operating lease liabilities are as follows (in thousands):
|  | As of December 31, 2023 |
2024 |  | $ | 6,972 |
2025 |  |  | 6,075 |
2026 |  |  | 6,238 |
2027 |  |  | 6,308 |
2028 |  |  | 6,406 |
Thereafter |  |  | 33,879 |
Total payments |  |  | 65,878 |
Less imputed interest |  |  | (30,808 | )
Total operating lease liabilities |  | $ | 35,070 |
Future Lease Payments from Sublease Agreement | The following tables shows the future payments the Company expects to receive from the Subtenant over the remaining term of the sublease (in thousands):
|  | As of December 31, 2023 |
2024 |  | $ | 86 |
2025 |  |  | 88 |
2026 |  |  | 75 |
Total payments |  | $ | 249 |

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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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