Note 11 - COMMITMENTS (Details) $ in Millions	9 Months Ended
	Sep. 30, 2024 USD ($)
CBRT facility
Long-Term Purchase Commitment [Line Items]
Contract price for construction of new facility	$ 17.0
Construction payment for new facility	12.6
Construction remaining future commitment	4.4
CSB facility
Long-Term Purchase Commitment [Line Items]
Contract price for construction of new facility	41.3
Construction payment for new facility	2.1
Construction remaining future commitment	$ 39.2