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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Name:	us-gaap_Depreciation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Note 5 - Property and Equipment (Details Textual) € in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2026 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 EUR (€)	Dec. 31, 2026 USD ($)
Property, Plant and Equipment [Line Items]
Consideration for equipment and services pursuant to the MESA and SOWs \| €			€ 49.0
Other [Member]
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 0	$ 0
Building Modifications [Member]
Property, Plant and Equipment [Line Items]
Capital improvements payable		$ 53,300,000
Building Modifications [Member] \| Forecast [Member]
Property, Plant and Equipment [Line Items]
Capital improvements payable				$ 53,300,000