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Note 13 - Segment Information - Reportable Segment Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Revenues |  | $ 9,289 |  | $ 20,960 | [1]
Operating costs and expenses |  |  |  | (6,171) |
Depreciation expense |  | (869) |  | (1,109) |
General and administrative expenses |  |  |  | (4,073) |
Operating income (loss) |  | (4,971) |  | 9,607 |
Pension and other post-retirement expenses |  | (436) |  | (7,885) |
Interest expense |  |  |  | (6) |
Gain from dercognition of nonfinancial asset |  | 1,626 |  | 0 |
Other income |  | 707 |  | 71 |
Income from continuing operations |  |  |  | 1,787 |
Capital expenditures | [2] |  |  | 33 |
Assets |  | 42,223 |  | 42,406 | [3]
Operating Segments [Member] |  |  |  |  |
Revenues | [1] | 9,289 |  |  |
Operating costs and expenses |  | (6,547) |  |  |
Depreciation expense |  | (869) |  |  |
General and administrative expenses |  | (6,844) |  |  |
Operating income (loss) |  | (4,971) |  |  |
Pension and other post-retirement expenses |  | (436) |  |  |
Interest expense |  | (6) |  |  |
Gain from dercognition of nonfinancial asset |  | 1,626 |  |  |
Other income |  | 707 |  |  |
Income from continuing operations |  | (3,080) |  |  |
Capital expenditures | [2] | 819 |  |  |
Assets | [4] | 42,223 |  |  |
Operating Segments [Member] | Real Estate Segment [Member] |  |  |  |  |
Revenues | [1] | 0 |  | 11,600 |
Operating costs and expenses |  | (595) |  | (1,026) |
Depreciation expense |  | 0 |  |  |
General and administrative expenses |  | (908) |  | (1,068) |
Operating income (loss) |  | (1,503) |  | 9,506 |
Capital expenditures | [2] | 200 |  | 33 |
Assets | [4] | 17,102 | [3] | 15,274 |
Operating Segments [Member] | Leasing Segment [Member] |  |  |  |  |
Revenues |  | 8,461 |  | 8,513 | [1]
Operating costs and expenses |  | (4,420) |  | (3,598) |
Depreciation expense |  | (861) |  | (1,101) |
General and administrative expenses |  | (456) |  | (1,141) |
Operating income (loss) |  | 2,724 |  | 2,673 |
Capital expenditures |  | 619 |  | 0 | [2]
Assets |  | 14,489 |  | 13,586 | [4]
Operating Segments [Member] | Resort Amenities Segment [Member] |  |  |  |  |
Revenues | [1] | 828 |  | 847 |
Operating costs and expenses |  | (1,532) |  | (1,547) |
Depreciation expense |  | 0 |  |  |
General and administrative expenses |  | (393) |  | (496) |
Operating income (loss) |  | (1,097) |  | (1,196) |
Capital expenditures | [2] | 0 |  | 0 |
Assets | [4] | 1,018 |  | 815 |
Operating Segments [Member] | Corporate Segment and Other Operating Segment [Member] |  |  |  |  |
Revenues | [1] | 0 |  |  |
Operating costs and expenses |  | 0 |  |  |
Depreciation expense |  | (8) |  | (8) |
General and administrative expenses |  | (5,087) |  | (1,368) |
Operating income (loss) |  | (5,095) |  | (1,376) |
Capital expenditures | [2] | 0 |  | 0 |
Assets | [4] | $ 9,614 |  | $ 12,731 |
[1] | Amounts are principally revenues from external customers and exclude equity in earnings of affiliates.
[2] | Includes expenditures for property and deferred costs.
[3] | The Land Development and Sales segment includes a $1.6 million equity method investment
[4] | Segment assets are located in the United States

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