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Note 7 - Goodwill and Identifiable Intangibles - Identifiable Intangibles By Major Asset Class (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Amortizable intangible assets, gross $ 8,058 $ 8,058
Amortizable intangible assets, accumulated amortization (3,866) (3,699)
Amortizable intangible assets, net 4,192 4,359
Total identifiable intangibles, gross 8,106 8,106
Total identifiable intangibles, net 4,240 4,407
Technology, Not Subject To Amortization [Member]    
Technology - not subject to amortization 48 48
Technology-Based Intangible Assets [Member]    
Amortizable intangible assets, gross 3,958 3,958
Amortizable intangible assets, accumulated amortization (928) (863)
Amortizable intangible assets, net $ 3,030 $ 3,095
Technology-Based Intangible Assets [Member] | Minimum [Member]    
Estimated useful lives (Year) 1 year 1 year
Technology-Based Intangible Assets [Member] | Maximum [Member]    
Estimated useful lives (Year) 20 years 20 years
Customer Relationships [Member]    
Estimated useful lives (Year) 10 years 10 years
Amortizable intangible assets, gross $ 4,100 $ 4,100
Amortizable intangible assets, accumulated amortization (2,938) (2,836)
Amortizable intangible assets, net $ 1,162 $ 1,264