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Note 7 - Other Intangible Assets - Schedule of Finite-lived Intangible Assets (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2023
Dec. 31, 2022
Trade names, gross $ 2,080 $ 2,080
Trade names, impairment (970) (970)
Trade names, net 1,110 1,110
Amortizable intangible assets, accumulated amortization (461) (423)
Amortizable intangible assets, net 1,132  
Total other intangible assets 5,260 5,260
Total other intangible assets, impairment (2,557) (2,557)
Total other intangible assets, net 2,242 2,280
Customer Relationships [Member]    
Amortizable intangible assets, gross 290 290
Amortizable intangible assets, accumulated amortization (51) (48)
Amortizable intangible assets, impairment (172) (172)
Amortizable intangible assets, net 67 70
Trade Secrets [Member]    
Amortizable intangible assets, gross 2,890 2,890
Amortizable intangible assets, accumulated amortization (410) (375)
Amortizable intangible assets, impairment (1,415) (1,415)
Amortizable intangible assets, net $ 1,065 $ 1,100