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Note 4 - Goodwill and Other Intangible Assets - Schedule of Finite-lived Intangible Assets (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Gross carrying amount $ 2,293 $ 2,272
Accumulated amortization 1,120 929
Net book value $ 1,173 $ 1,343
Customer Relationships [Member]    
Remaining lives (Year) 9 years 9 years
Gross carrying amount $ 1,302 $ 1,302
Accumulated amortization 795 651
Net book value $ 507 $ 651
Intellectual Property [Member]    
Remaining lives (Year) 3 years 3 years
Gross carrying amount $ 100 $ 100
Accumulated amortization 100 95
Net book value $ 5
Trade Names [Member]    
Remaining lives (Year) 20 years 20 years
Gross carrying amount $ 814 $ 814
Accumulated amortization 225 183
Net book value $ 589 $ 631
Other Intangible Assets [Member]    
Remaining lives (Year) 7 years 7 years
Gross carrying amount $ 77 $ 56
Accumulated amortization
Net book value $ 77 $ 56