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Note 18 - Segment Information - Segment Reporting Information by Capital Expenditures and Assets (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Capital expenditures $ 11,011 $ 9,803 $ 10,165
Assets 1,023,572 640,605
Flat Products Segment [Member]      
Capital expenditures 8,797 7,589 6,996
Assets 777,074 404,269
Tubular and Pipe Products [Member]      
Capital expenditures 2,214 2,214 3,169
Assets 245,962 235,516
Corporate Segment [Member]      
Capital expenditures 0 0 0
Assets $ 536 $ 820