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Note 12 - Commitments and Contingencies (Details Textual) $ / shares in Units, $ in Thousands, € in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended | 10 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2025 USD ($) | Mar. 31, 2025 USD ($) | Mar. 31, 2025 EUR (€) | Dec. 31, 2024 USD ($) | Aug. 31, 2024 USD ($) | Mar. 31, 2024 USD ($) | Sep. 30, 2020 USD ($) shares | Mar. 31, 2025 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) $ / shares | Dec. 31, 2023 USD ($) | Nov. 30, 2024 USD ($) | Mar. 14, 2023 USD ($) | Mar. 31, 2020 | Mar. 26, 2020 $ / shares
Share Price (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  | $ 6 |  |  |  |  |
Inventory Step-Up |  |  |  |  |  |  |  |  | $ 3,673 | $ 0 |  |  |  |  |
Increlex [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitment |  |  |  | $ 2,500 |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Marketing Rights |  |  |  | 22,500 |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Inventory | $ 11,540 |  |  | 7,500 |  |  |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability |  |  |  |  |  |  |  |  | 4,643 |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability, Accreted to Interest Expense |  |  |  |  |  |  |  |  | 357 |  |  |  |  |  |
Number of Quarterly Installment Payments | 8 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increlex [Member] | Accrued Liabilities [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability |  |  |  |  |  |  |  |  | 2,500 |  |  |  |  |  |
Increlex [Member] | Other Noncurrent Liabilities [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability |  |  |  |  |  |  |  |  | 2,143 |  |  |  |  |  |
Increlex [Member] | Accounts Payable, Current [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability | $ 6,949 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increlex [Member] | Long-term Inventory Payable [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability | $ 5,188 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Indemnification Rights and Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitment |  |  |  | $ 0 |  |  |  |  | 0 |  |  |  |  |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share Price (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3.33
PKU GoLike [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitment |  |  |  |  |  | $ 2,000 |  |  |  |  |  |  |  |  |
Payments to Acquire Marketing Rights |  |  |  |  |  | $ 2,200 |  |  |  |  |  |  |  |  |
Royalty on Net Sales of Products, Percent |  |  |  |  |  | 30.00% |  |  |  |  |  |  |  |  |
GALZIN [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Royalties, Percentage of Net Sales, |  |  |  | 10.00% |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Marketing Rights |  |  |  | $ 7,000 |  |  |  |  |  |  |  |  |  |  |
GALZIN [Member] | Inventories [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Marketing Rights |  |  |  | $ 200 |  |  |  |  |  |  |  |  |  |  |
Tulex Pharmaceuticals, Inc. (“Tulex”) [Member] | Obligation Based on Successful Manufacturing of Registration Batches [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitment |  |  |  |  |  |  |  |  |  |  |  |  | $ 450 |  |
Tulex Pharmaceuticals, Inc. (“Tulex”) [Member] | Obligation Based on Acceptance of FDA of NDA for product [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Royalties, Percentage of Net Sales, |  |  |  |  |  |  |  |  |  |  |  |  | 12.50% |  |
Other Commitment |  |  |  |  |  |  |  |  |  |  |  |  | $ 200 |  |
Tulex Pharmaceuticals, Inc. (“Tulex”) [Member] | Obligation Based on First Commercial Sale of Product [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Royalties, Percentage of Net Sales, |  |  |  |  |  |  |  |  |  |  |  |  | 17.00% |  |
Other Commitment |  |  |  |  |  |  |  |  |  |  |  |  | $ 250 |  |
Selenix [Member] | DS-200 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds From Up-front Payment |  |  |  |  | $ 500 |  |  |  |  |  |  |  |  |  |
Revenue, Additional Based on Event and Sales-based Milestones Achievements |  |  |  |  | $ 1,500 |  |  |  |  |  |  |  |  |  |
Commitment, Allocation of Profits, Percentage |  |  |  |  | 45.00% |  |  |  |  |  |  |  |  |  |
Selenix [Member] | DS-200 [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue, Additional Based on Event and Sales-based Milestones Achievements |  |  |  |  |  |  |  | $ 5,000 |  |  |  |  |  |  |
AMMTeK [Member] | Amglidia [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Royalties, Percentage of Net Sales, |  |  |  |  |  |  |  |  |  |  |  | 14.00% |  |  |
AMMTeK [Member] | Amglidia [Member] | Receipt of FDA Minutes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitment |  |  |  |  |  |  |  |  |  |  |  | $ 500 |  |  |
AMMTeK [Member] | Amglidia [Member] | NDA Acceptance for Review by FDA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitment |  |  |  |  |  |  |  |  |  |  |  | 550 |  |  |
AMMTeK [Member] | Amglidia [Member] | NDA Approval by the FDA and First Commercial Sale [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitment |  |  |  |  |  |  |  |  |  |  |  | $ 1,300 |  |  |
Esteve [Member] | Increlex [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounts Receivable, after Allowance for Credit Loss |  | $ 4,327 |  |  |  |  |  | 4,327 |  |  |  |  |  |  |
Esteve [Member] | Increlex [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds From Up-front Payment | € |  |  | € 4 |  |  |  |  |  |  |  |  |  |  |  |
License Agreement, Purchase Price of Option to Acquire | € |  |  | € 6 |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | 1,786 |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred Revenue |  | $ 2,541 |  |  |  |  |  | $ 2,541 |  |  |  |  |  |  |
Contract with Customer, Liability, Revenue Recognized |  |  |  |  |  |  |  |  | 322 |  |  |  |  |  |
Inventory Step-Up |  |  |  |  |  |  |  |  | 3,673 |  |  |  |  |  |
Esteve [Member] | Increlex [Member] | Accrued Liabilities [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred Revenue |  |  |  |  |  |  |  |  | 457 |  |  |  |  |  |
Esteve [Member] | Increlex [Member] | Other Noncurrent Liabilities [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred Revenue |  |  |  |  |  |  |  |  | $ 1,762 |  |  |  |  |  |
Exclusive Licensing and Supply Agreement (the “Alkindi License Agreement”) [Member] | Diurnal Limited [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate Value of Licensing Milestone Included in Research and Development Expense |  |  |  |  |  |  |  |  |  |  | $ 1,000 |  |  |  |
Exclusive Licensing and Supply Agreement (the “Alkindi License Agreement”) [Member] | Diurnal Limited [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate Value of Licensing Milestone Included in Research and Development Expense |  |  |  |  |  |  |  |  |  |  | $ 44,000 |  |  |  |
Royalties, Percentage of Net Sales, |  |  |  |  |  |  |  |  |  |  |  |  |  | 17.00% |
Exclusive Licensing and Supply Agreement (the “Alkindi License Agreement”) [Member] | Diurnal Limited [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Royalties, Percentage of Net Sales, |  |  |  |  |  |  |  |  |  |  |  |  |  | 11.50% |
Exclusive Licensing and Supply Agreement (the “Alkindi License Agreement”) [Member] | Diurnal Limited [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) | shares |  |  |  |  |  |  | 379,474 |  |  |  |  |  |  |  |
Stock Issued During Period, Value, New Issues |  |  |  |  |  |  | $ 1,264 |  |  |  |  |  |  |  |
Exclusive Licensing and Supply Agreement (the “Alkindi License Agreement”) [Member] | Diurnal Limited [Member] | License [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitment, Milestone Fee |  |  |  |  |  |  | $ 3,500 |  |  |  |  |  |  |  |

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