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Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Impairment, Long-Lived Asset, Held-for-Use $ 0 $ 0 $ 589 $ 0
Tangible Asset Impairment Charges     30 $ (0)
Operating Lease, Impairment Loss     $ 559  
Equipment [Member] | Minimum [Member]        
Property, Plant and Equipment, Useful Life 5 years   5 years  
Equipment [Member] | Maximum [Member]        
Property, Plant and Equipment, Useful Life 7 years   7 years  
Computer Equipment and Software [Member] | Minimum [Member]        
Property, Plant and Equipment, Useful Life 3 years   3 years  
Computer Equipment and Software [Member] | Maximum [Member]        
Property, Plant and Equipment, Useful Life 5 years   5 years  
Furniture and Fixtures [Member] | Minimum [Member]        
Property, Plant and Equipment, Useful Life 5 years   5 years  
Furniture and Fixtures [Member] | Maximum [Member]        
Property, Plant and Equipment, Useful Life 7 years   7 years