Goodwill - Change in Carrying Amount of Goodwill by Segment (Details) - USD ($) |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Dec. 31, 2020 |
Sep. 30, 2020 |
Dec. 31, 2020 |
Dec. 31, 2019 |
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| Goodwill [Roll Forward] | ||||
| Goodwill, beginning of period | $ 17,558,000 | $ 9,800,000 | ||
| American Stainless Acquisition | 7,758,000 | |||
| Impairment charges | (16,203,000) | 0 | ||
| Goodwill, end of period | $ 1,355,000 | 1,355,000 | 17,558,000 | |
| Specialty Chemicals Segment | ||||
| Goodwill [Roll Forward] | ||||
| Goodwill, beginning of period | 1,355,000 | 1,355,000 | ||
| American Stainless Acquisition | 0 | |||
| Impairment charges | 0 | 0 | ||
| Goodwill, end of period | 1,355,000 | 1,355,000 | 1,355,000 | |
| Metals Segment | ||||
| Goodwill [Roll Forward] | ||||
| Goodwill, beginning of period | 16,203,000 | 8,445,000 | ||
| American Stainless Acquisition | 7,758,000 | |||
| Impairment charges | (5,500,000) | $ (10,700,000) | (16,203,000) | |
| Goodwill, end of period | $ 0 | $ 0 | $ 16,203,000 | |
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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