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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, 2022
Dec. 31, 2021
Balance $ 501 $ 1,173
Additions 71 64
Amortization 150 176
Abandonment Loss   560
Balance 422 501
Customer Relationships [Member]    
Balance 360 507
Additions 0 0
Amortization 144 147
Abandonment Loss   0
Balance 216 360
Trade Names [Member]    
Balance 0 589
Additions 0 0
Amortization 0 29
Abandonment Loss   560
Balance 0 0
Patents [Member]    
Balance 141 77
Additions 71 64
Amortization 6 0
Abandonment Loss   0
Balance $ 206 $ 141