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 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Business Acquisition [Line Items]        
Net sales $ 7,255 $ 8,557 $ 14,900 $ 18,070
Income before taxes $ 1,377 $ 992 $ 1,718 $ 1,099