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Note 8 - Goodwill & Identified Intangible Assets (Details Textual) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Mar. 30, 2023
Mar. 29, 2023
Finite-Lived Intangible Assets, Accumulated Amortization $ 9,988 $ 7,194 $ 9,988 $ 7,194 $ 8,590    
Amortization of Intangible Assets 700 700 1,400 1,500      
Customer Relationships [Member]              
Finite-Lived Intangible Assets, Gross 41,659 41,659 [1] 41,659 41,659 [1] 41,659    
Finite-Lived Intangible Assets, Accumulated Amortization $ 9,133 6,358 [1] $ 9,133 6,358 [1] 7,745    
Finite-Lived Intangible Asset, Useful Life (Year) 11 years 9 months 18 days   11 years 9 months 18 days        
Patents [Member]              
Finite-Lived Intangible Assets, Gross $ 895 895 $ 895 895 895    
Finite-Lived Intangible Assets, Accumulated Amortization $ 855 $ 836 $ 855 $ 836 $ 845    
Finite-Lived Intangible Asset, Useful Life (Year) 3 years 4 months 24 days   3 years 4 months 24 days        
Servus Brand [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]              
Indefinite-Lived Trade Names           $ 0 $ 2,500
Servus Brand [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Customer Relationships [Member]              
Finite-Lived Intangible Assets, Gross           $ 0 4,300
Finite-Lived Intangible Assets, Accumulated Amortization             $ 600
[1] Customer relationships relating to the Servus brand of approximately $4.3 million and related amortization of approximately $0.6 million was reduced to zero at March 30, 2023 as a result of the sale of the Servus brand (see Note 4 - Sale of Servus Brand and Related Assets).