Note 1 - Organization and Basis of Presentation (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	May 14, 2024	Mar. 31, 2024
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents	$ 6,320			$ 7,142
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(1,557)	$ (515)
Net Cash Provided by (Used in) Operating Activities	1,342	$ 1,221
Working Capital	(22,500)
Potential Financing Amount	$ 150,000
Roth Capital [Member]
Sale of Stocks, Maximum Amount Authorized to Sell			$ 25,000