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Note 10 - 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
Mar. 31, 2023
Sep. 30, 2023
Dec. 31, 2022
Proceeds from Sale of Productive Assets   $ 2,000  
Disposal Group, Including Discontinued Operation, Payment Term (Year)   5 years  
Gain (Loss) on Disposition of Assets $ 340    
Customer Lists [Member]      
Disposal Group, Including Discontinued Operation, Intangible Assets   $ 1,400 $ 3,100