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Supplemental Disclosures for Consolidated Statements of Cash Flows (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Supplemental disclosure of non-cash investing and financing activities    
Purchases of property, machinery and equipment in accounts payable and accrued expenses at year end $ 0 $ 113
Purchases of intangible assets in accounts payable and accrued expenses at year end 20 20
Issuance costs related to warrant modifications 1,272 2,130
Issuance costs related to placement agent warrants 386 0
Relative fair value of warrants issued with convertible notes 1,305 0
Relative fair value of warrants issued with loan payable 121 0
Fair value of warrants issued for debt issuance costs 2,000 0
Remeasurement of operating lease right-of-use assets and lease obligations 3,845 0
Supplemental disclosure of cash flow information    
Cash paid for interest $ 106 $ 980