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Note 2 - Significant Accounting Policies - Assets Measured on a Nonrecurring Basis (Details) - USD ($) | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
NTR Property Management [Member] |  |
Goodwill | $ 451,000 |
Fair Value, Nonrecurring [Member] |  |
Total Assets | 1,574,000 | $ 2,423,000
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Total Assets | 0 | 0
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Total Assets | 0 | 0
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Total Assets | 1,574,000 | 2,423,000
Fair Value, Nonrecurring [Member] | Dubose Model Homes [Member] |  |
Goodwill | 1,123,000 | 1,123,000
Fair Value, Nonrecurring [Member] | Dubose Model Homes [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Goodwill | 0 | 0
Fair Value, Nonrecurring [Member] | Dubose Model Homes [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Goodwill | 0 | 0
Fair Value, Nonrecurring [Member] | Dubose Model Homes [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Goodwill | 1,123,000 | 1,123,000
Fair Value, Nonrecurring [Member] | NTR Property Management [Member] |  |
Goodwill | 451,000 | 1,300,000
Fair Value, Nonrecurring [Member] | NTR Property Management [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Goodwill | 0 | 0
Fair Value, Nonrecurring [Member] | NTR Property Management [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Goodwill | 0 | 0
Fair Value, Nonrecurring [Member] | NTR Property Management [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Goodwill | $ 451,000 | $ 1,300,000

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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