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v3.20.4

Fair Value Disclosures (Level 4 inventory fv) (Details 3) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2021 USD ($) | Oct. 31, 2020 USD ($) | Jul. 31, 2020 USD ($) | Apr. 30, 2020 USD ($) | Jan. 31, 2020 USD ($) | Oct. 31, 2020 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Inventory Write-down | $ 1,267 |  |  |  | $ 1,031 |
Equity Method Investment, Nonconsolidated Investee or Group of Investees |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Revenues | 92,530 |  |  |  | $ 133,170 |
Operating communities [Member] |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Inventory Write-down | $ 1,100 |  |  |  |  | $ 675
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Operating communities [Member] |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Number of Operating Communities Tested (in ones) | 53 | 53 | 66 | 80 | 65 |
Number of Communities Impaired (in ones) | 1 | 1 | 0 | 1 | 0 |
Fair Value Of Communities Net Of Impairment Charges | $ 419 | $ 1,113 | $ 0 | $ 2,754 | $ 0 | $ 1,113
Inventory Write-down | 1,100 | $ 375 | $ 0 | $ 300 | 0 |
City Living [Member] |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Inventory Write-down | 1,100 |  |  |  | 0 |
North [Member] |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Inventory Write-down | 35 |  |  |  | 94 |
South [Member] |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Inventory Write-down | 25 |  |  |  | 747 |
Mid-Atlantic [Member] |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Inventory Write-down | 32 |  |  |  | 1 |
Pacific [Member] |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Inventory Write-down | $ 66 |  |  |  | $ 11 |

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