Note 7 - Statera License Agreement (Details Textual) $ in Thousands	Mar. 28, 2025 USD ($)	Feb. 11, 2025 USD ($) kg	Jun. 18, 2025 USD ($)
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
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