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Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jan. 31, 2020 | Jul. 31, 2020 | Oct. 31, 2019
Finite-Lived Intangible Assets [Line Items] |  |  |
Accumulated Amortization |  | $ (1,836) | $ (1,084)
Net Carrying Amount |  | 8,000 |
Gross Carrying Amount |  | 13,445 | 13,491
Net Carrying Amount |  | 11,609 | 12,407
Trade names and trademarks |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount |  | 3,786 | 3,786
Accumulated Amortization |  | (801) | (542)
Net Carrying Amount |  | $ 2,985 | 3,244
Weighted Average Useful Life in Years | 10 years | 10 years |
Customer relationships |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount |  | $ 5,010 | 5,010
Accumulated Amortization |  | (914) | (500)
Net Carrying Amount |  | $ 4,096 | 4,510
Weighted Average Useful Life in Years | 9 years | 9 years |
Non-competition agreement |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount |  | $ 1,040 | 1,040
Accumulated Amortization |  | (121) | (42)
Net Carrying Amount |  | $ 919 | 998
Weighted Average Useful Life in Years | 10 years | 10 years |
Acquired water and mineral rights |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount of Indefinite Lived Assets |  | $ 3,609 | $ 3,655

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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