Note 16 - Employee Benefit Plan (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	5.00%
Defined Contribution Plan, Cost	$ 0.2	$ 0.1
Maximum [Member]
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	100.00%