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Note 1 - Summary of Significant Accounting Policies - Other Intangible Assets (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Gross carrying amount $ 2,272 $ 2,233
Accumulated amortization 929 710
Other Intangible Assets, Net $ 1,343 $ 1,523
Customer Relationships [Member]    
Remaining lives (Year) 9 years 9 years
Gross carrying amount $ 1,302 $ 1,302
Accumulated amortization 651 506
Other Intangible Assets, Net $ 651 $ 796
Intellectual Property [Member]    
Remaining lives (Year) 3 years 3 years
Gross carrying amount $ 100 $ 100
Accumulated amortization 95 61
Other Intangible Assets, Net $ 5 $ 39
Trade Names [Member]    
Remaining lives (Year) 20 years 20 years
Gross carrying amount $ 814 $ 814
Accumulated amortization 183 143
Other Intangible Assets, Net $ 631 $ 671
Other Intangible Assets [Member]    
Remaining lives (Year) 7 years 7 years
Gross carrying amount $ 56 $ 17
Accumulated amortization
Other Intangible Assets, Net $ 56 $ 17