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Property, Plant and Equipment, and Fixed Assets - Construction in Process (Narrative) (Details) - USD ($) |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Jul. 29, 2023 | Jul. 28, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023 | Dec. 31, 2022
Proceeds from the sale of property and equipment |  |  |  |  | $ 0 | $ 6,000,000 | $ 6,000,000 | $ 127,000
Gain on sale of property and equipment |  |  |  |  | 0 | 1,351,000 | 1,466,000 | 0
Depreciation expense |  |  | $ 100,000 | $ 300,000 | $ 620,000 | $ 1,576,000 | 1,860,000 | 2,723,000
Fixed assets - construction in process |  |  |  |  |  |  | 29,000 | $ 951,000
uBriGene |  |  |  |  |  |  |  |
Proceeds from the sale of property and equipment |  | $ 6,000,000 |  |  |  |  |  |
Sale consideration considered deferred income |  | $ 300,000 |  |  |  |  |  |
Amended Asset Purchase Agreement | uBriGene |  |  |  |  |  |  |  |
Proceeds from the sale of property and equipment | $ 6,000,000 |  |  |  |  |  |  |
Gain on sale of property and equipment |  |  |  |  |  |  | 1,500,000 |
Sale consideration considered deferred income |  |  |  |  |  |  | $ 200,000 |

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- Definition Amount after accumulated depreciation, depletion and amortization of assets under construction. + References No definition available. + Details
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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 12 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-12 + Details
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