Note 2 - Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands			1 Months Ended
	Sep. 30, 2022	Dec. 23, 2021	Dec. 31, 2022	Dec. 23, 2022	Sep. 30, 2023	Mar. 31, 2023
Percentage of Royalty Receivable on Sale of Product Rights		50.00%	30.00%	30.00%
Milestone Payment Receivable			$ 200,000		$ 0
Percentage Of Interest Earned on Outstanding Contract Royalty Asset						11.00%
DRI Healthcare Acquisition LP [Member]
Proceeds From Royalty Obligation	$ 125,000
Maximum Royalty Payable Percentage					9.40%	9.40%