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Income Taxes - Details of Net Deferred Tax Asset (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
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Deferred tax assets: |  |
Net Operating Loss Carryforward | $ 72,886 | $ 71,423
Stock Based Compensation | 3,230 | 4,584
General Business Credit | 6,872 | 6,872
Research & Experimental Expenses | 219 | 338
Inventories | 27 | 474
Deferred Interest | 2,150 | 1,909
Accrued Expenses | 68 | 84
Deferred License Revenue | 0 | 106
Other Deferred Tax Assets | 244 | 65
Total Deferred Tax Assets | 85,696 | 85,855
Deferred Tax Liabilities: |  |
Goodwill & Intangible Assets | 363 | 327
Prepaid Expenses | 208 | 205
Book over Tax Depreciation | 7 | 60
Total Deferred Tax Liabilities | 578 | 592
Net Deferred Tax Asset Before Valuation Allowance | 85,118 | 85,263
Valuation Allowance | (85,118) | (85,263)
Net Deferred Tax Asset | $ 0 | $ 0

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