Note 10 - Leases (Details Textual)	Dec. 31, 2025 ft²	Dec. 31, 2024
Additional Number of Leases	2
Operating Lease, Weighted Average Remaining Lease Term (Year)	5 years 3 months	6 years 2 months 4 days
Operating Lease, Weighted Average Discount Rate, Percent	8.27%	8.25%
Minimum [Member]
Lessee, Operating Lease, Remaining Lease Term (Year)	3 years 3 months 18 days
Maximum [Member]
Lessee, Operating Lease, Remaining Lease Term (Year)	5 years 3 months 18 days
Office Building [Member] \| Gallarate Italy [Member]
Area of Real Estate Property (Square Foot)	1,335
Office Building [Member] \| Aurora Illinois [Member]]
Area of Real Estate Property (Square Foot)	11,000

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- Definition

Area of a real estate property.

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- Definition

Remaining lease term of operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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-Topic 842
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- Definition

Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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