Note 13 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Assets [Abstract]
Property, Plant and Equipment, Net	$ 3,646	$ 3,325
Liabilities, Current [Abstract]
Accounts Payable and Accrued Liabilities, Current	26,953	22,772
Fixed rent cost	324	490
Short term lease cost	596	141
Total operating lease cost	$ 920	$ 631
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, Plant and Equipment, Net	Property, Plant and Equipment, Net
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accounts Payable and Accrued Liabilities, Current	Accounts Payable and Accrued Liabilities, Current
Operating lease right-of-use assets	$ 88	$ 423
Lease liabilities, current	91	273
Operating lease liability, noncurrent	0	161
Total operating lease liabilities	$ 91	$ 434