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Note 5 - Fair Value Measurements (Details Textual) $ / shares in Units, $ in Thousands |  |  |  | 1 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Feb. 23, 2026 USD ($) shares | Jan. 07, 2025 USD ($) shares | Jan. 07, 2024 USD ($) $ / shares shares | Feb. 28, 2026 USD ($) shares | Feb. 28, 2024 | Mar. 31, 2010 USD ($) $ / shares | Jun. 30, 2026 USD ($) | Jun. 30, 2025 USD ($) | Dec. 31, 2025 USD ($)
Payments to Acquire Equity Securities, FV-NI |  |  |  |  |  |  | $ (0) | $ 1,250 |
Manhattan and Ariston Pharmaceuticals Merger [Member] |  |  |  |  |  |  |  |  |
Notes Issued |  |  |  |  |  | $ 15,500 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 5.00% |  |  |
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares |  |  |  |  |  | $ 1,125 |  |  |
Precision BioSciences, Inc. [Member] | Reverse Stock Split [Member] |  |  |  |  |  |  |  |  |
Stockholders' Equity Note, Stock Split, Conversion Ratio |  |  |  |  | 30 |  |  |  |
Precision BioSciences, Inc. [Member] |  |  |  |  |  |  |  |  |
Investment Purchased Balance Shares (in shares) | shares |  | 220,712 |  |  |  |  |  |  |
Investment Purchased Balance Price Per Share (in dollars per share) | $ / shares |  |  | $ 0.77 |  |  |  |  |  |
Payments to Acquire Equity Securities, FV-NI |  | $ 2,500 |  |  |  |  |  |  |
License Agreement, Payment, Percentage of Weighted Average Share Price |  | 200.00% |  |  |  |  |  |  |
License Agreement, Share Price, Trading Days (Day) | 30 years | 30 days |  |  |  |  |  |  |
Equity Method Investments, Fair Value Disclosure |  | $ 1,400 |  |  |  |  |  |  | $ 800
License Agreement, Percentage of Premium on Equity Investment | 200.00% |  |  |  |  |  |  |  |
Precision BioSciences, Inc. [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |
Investment Purchased Balance Shares (in shares) | shares | 201,504 |  | 2,920,816 |  |  |  |  |  |
Precision License Agreement [Member] |  |  |  |  |  |  |  |  |
License Agreement, Amount Paid Upfront | $ 7,500 |  | $ 7,500 | $ 7,500 |  |  |  |  |
License Agreement, Amount Paid Upfront, Cash | 5,250 |  | 5,250 | 5,250 |  |  |  |  |
License Agreement, Amount Paid Upfront, Equity Investment | $ 2,250 |  | $ 2,250 | $ 2,250 |  |  |  |  |
License Agreement, Payment, Percentage of Weighted Average Share Price |  |  |  | 200.00% |  |  |  |  |
License Agreement, Share Price, Trading Days (Day) |  |  | 30 days | 30 days |  |  |  |  |
License Agreement, Percentage of Premium on Equity Investment |  |  | 100.00% |  |  |  |  |  |
Precision License Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |
Investment Purchased Balance Shares (in shares) | shares |  |  |  | 201,504 |  |  |  |  |

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