Note 10 - Debt Financing (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2022	Mar. 31, 2025
Percentage of Face Amount of Letters of Credit As Collateral	150.00%
Payment, Basis Points on Face Value of Letters of Credit	2.50%
Letters of Credit Outstanding, Amount		$ 2,124
Asset Pledged as Collateral [Member]
Investments		$ 3,186

Sum of the carrying amounts as of the balance sheet date of all investments.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant