Note 8 - Fair Value Measurements - Recurring Fair Value Measurements (Details) - Fair Value, Recurring [Member] - USD ($) $ in Thousands	Mar. 31, 2026	Mar. 31, 2025
Commodity futures – financial liabilities, net	$ (273)
Contingent consideration for business combination - financial liability	(2,160)
Total	(2,433)	$ 349
Future [Member]
Commodity futures – financial liabilities, net		349
Fair Value, Inputs, Level 1 [Member]
Commodity futures – financial liabilities, net	(273)
Contingent consideration for business combination - financial liability	0
Total	(273)	349
Fair Value, Inputs, Level 1 [Member] \| Future [Member]
Commodity futures – financial liabilities, net		349
Fair Value, Inputs, Level 2 [Member]
Commodity futures – financial liabilities, net	0
Contingent consideration for business combination - financial liability	0
Total	0	0
Fair Value, Inputs, Level 2 [Member] \| Future [Member]
Commodity futures – financial liabilities, net		0
Fair Value, Inputs, Level 3 [Member]
Commodity futures – financial liabilities, net	0
Contingent consideration for business combination - financial liability	(2,160)
Total	$ (2,160)	0
Fair Value, Inputs, Level 3 [Member] \| Future [Member]
Commodity futures – financial liabilities, net		$ 0

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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+ Details