Note 2 - Going Concern (Details Textual) - USD ($) $ in Thousands		3 Months Ended
Apr. 30, 2025	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Retained Earnings (Accumulated Deficit)		$ (104,424)		$ (87,084)
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation		$ (2,511)	$ (1,319)
Evoke Neuroscience, Inc. [Member] \| Subsequent Event [Member]
Payments to Acquire Businesses, Gross	$ 3,000

Amount of accumulated undistributed earnings (deficit).

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