Note 9 - Statera License Agreement (Details Textual) $ in Thousands	Mar. 28, 2025 USD ($)	Feb. 11, 2025 USD ($) kg	Mar. 31, 2026 USD ($)	Dec. 31, 2025 USD ($)	Jun. 18, 2025 USD ($)
Accrued Expense, Capitalized License Cost			$ 750	$ 0
Amended and Restated Exclusive License Agreement [Member]
License Agreement, Maximum Lien Payoff Amount					$ 5,600
Amended and Restated Exclusive License Agreement [Member] \| Statera [Member]
Subordinated Debt, Percent Received					20.00%
Amended and Restated Exclusive License Agreement [Member] \| Avenue [Member]
Subordinated Debt, Percent Received					80.00%
Statera License Agreement [Member]
Asset Acquisition, Consideration Transferred		$ 1,500
Payments to Acquire Productive Assets		300
Asset Acquisition, Consideration Transferred, Equity Interest Issued and Issuable		1,200
Asset Acquisition, Consideration Transferred, Transaction Cost		243
Capitalized Cost, Additional License Costs			750
Accrued Expense, Capitalized License Cost			$ 750
Statera License Agreement [Member] \| Drug Substance Care, Storage, and Handling Lease [Member]
Lessee, Operating Lease, Annual Lease Payments		$ 1
Statera License Agreement [Member] \| Drug Substances [Member]
Inventory, Finished Goods and Work in Process, Mass, Net (Kilogram) \| kg		15
Statera License Agreement, Neutropenia Option [Member]
Asset Acquisition, Consideration Transferred, Equity Interest Issued and Issuable	$ 500
Asset Acquisition, Contingent Consideration, Tranche One	$ 500