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Note 14 - Discontinued Operations (Details Textual) - Discontinued Operations, Held-for-Sale or Disposed of by Sale [Member] - Assets Acquired in The Dental Power Agreement [Member] - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down $ 100 $ (0) $ 100 $ (0)  
Customer Lists [Member]          
Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down 100        
Disposal Group, Including Discontinued Operation, Intangible Assets $ 791   $ 791   $ 891