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Owned Inventory - Inventory Impairments and Abandonment Charges, by Reportable Segment (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Mar. 31, 2023 | Mar. 31, 2022
Real Estate Properties [Line Items] |  |  |  |
Total impairment charges on land held for sale | $ 0 | $ 440,000 | $ 0 | $ 440,000
Total abandonments charges | 111,000 | 495,000 | 301,000 | 495,000
Total impairments and abandonment charges | 111,000 | 935,000 | 301,000 | 935,000
West | Operating Segments |  |  |  |
Real Estate Properties [Line Items] |  |  |  |
Total impairment charges on land held for sale | 0 | 440,000 | 0 | 440,000
Total abandonments charges | 111,000 | 12,000 | 147,000 | 12,000
East | Operating Segments |  |  |  |
Real Estate Properties [Line Items] |  |  |  |
Total abandonments charges | 0 | 0 | 154,000 | 0
Southeast | Operating Segments |  |  |  |
Real Estate Properties [Line Items] |  |  |  |
Total abandonments charges | $ 0 | $ 483,000 | $ 0 | $ 483,000

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- Definition The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 15 -URI https://asc.fasb.org/extlink&oid=126905981&loc=d3e2611-110228 + Details
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