Note 11 - Leases - Lease Cost (Details) (Parentheticals)	Mar. 31, 2025	Mar. 31, 2024
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, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Operating Lease, Liability, Noncurrent	Operating Lease, Liability, Noncurrent

Indicates line item in statement of financial position that includes current operating lease liability.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-2

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- Definition

Indicates line item in statement of financial position that includes noncurrent operating lease liability.

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- Definition

Indicates line item in statement of financial position that includes operating lease right-of-use asset.

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