Note 6 - Leases - Balance Sheet Information (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Mar. 31, 2026
Operating Lease, Right-of-Use Asset	$ 6,173	$ 4,702
Total right-of-use assets	6,173	4,702
Operating lease liability, current	1,240	756
Operating lease liability, non-current	5,104	4,097
Total lease liabilities	$ 6,344	$ 4,853