Note 4 - Property, Plant and Equipment (Details Textual) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Capitalized Interest Costs, Including Allowance for Funds Used During Construction	$ 1,100	$ 1,300	$ 2,100	$ 3,000
Depreciation	$ 2,350	$ 2,049	$ 4,708	$ 3,847

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Balance Type:	debit
Period Type:	duration