Quarterly report pursuant to Section 13 or 15(d)

Acquisitions - Results of Operations Since Acquisition (Details)

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Acquisitions - Results of Operations Since Acquisition (Details) - American Stainless Tubing, Inc. - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Business Acquisition [Line Items]        
Net sales $ 8,020 $ 8,469 $ 22,920 $ 26,539
Income before taxes $ (4,233) $ 902 $ (2,515) $ 2,001