Note 10 - Leases (Details Textual)	Dec. 31, 2023 ft²
Additional Number of Leases	3
Operating Lease, Weighted Average Remaining Lease Term (Year)	6 years 6 months 29 days
Operating Lease, Weighted Average Discount Rate, Percent	8.00%
Minimum [Member]
Lessee, Operating Lease, Remaining Lease Term (Year)	6 months
Maximum [Member]
Lessee, Operating Lease, Remaining Lease Term (Year)	7 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
Office Building [Member] \| Overland Park [Member]
Area of Real Estate Property (Square Foot)	600

Additional Number Of Leases

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- Definition

Area of a real estate property.

+ References

No definition available.

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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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-3

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- Definition

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

+ References

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-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479589/842-20-55-53

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479589/842-20-55-53

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