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Note 10 - Segment Information - Reportable Segment Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Revenues | [1] | $ 7,540 |  | $ 10,045 | [2] |
Operating costs and expenses | [2] | (4,726) |  | (5,443) |  |
Depreciation expense | [2] | (1,289) |  | (1,412) |  |
General and administrative and other expenses | [2] | (4,077) |  | (3,986) |  |
Operating income (loss) | [2] | (2,552) |  | (796) |  |
Pension and other post-retirement expenses |  | (475) | [2] | (1,016) |  |
Interest expense |  | (134) | [2] | (198) |  |
Other Income |  | 894 |  |  |  |
Loss from continuing operations |  | (2,267) |  | (7,009) |  |
Capital expenditures | [3] | 517 | [2] | 990 |  |
Assets | [2],[4] | 38,470 |  | 39,119 |  |
Income tax expense |  |  |  | (4,999) |  | $ 5,000
Operating Segments [Member] | Real Estate Segment [Member] |  |  |  |  |  |
Revenues | [1] | 772 |  | 915 |  |
Operating costs and expenses |  | (600) |  | (1,185) |  |
Depreciation expense |  |  |  |  |  |
General and administrative and other expenses |  | (1,075) |  | (1,069) |  |
Operating income (loss) |  | (903) |  | (1,339) |  |
Capital expenditures | [3] | 436 | [2] | 278 |  |
Assets | [4] | 14,851 |  | 13,789 |  |
Operating Segments [Member] | Leasing Segment [Member] |  |  |  |  |  |
Revenues | [1] | 5,948 |  | 8,148 |  |
Operating costs and expenses |  | (2,933) |  | (3,228) |  |
Depreciation expense |  | (1,278) |  | (1,352) |  |
General and administrative and other expenses |  | (1,131) |  | (1,102) |  |
Operating income (loss) |  | 606 |  | 2,466 |  |
Capital expenditures | [3] | 81 | [2] | 86 |  |
Assets | [4] | 16,109 |  | 17,432 |  |
Operating Segments [Member] | Resort Amenities Segment [Member] |  |  |  |  |  |
Revenues | [1] | 820 |  | 982 |  |
Operating costs and expenses |  | (1,193) |  | (1,030) |  |
Depreciation expense |  |  |  |  |  |
General and administrative and other expenses |  | (492) |  | (479) |  |
Operating income (loss) |  | (865) |  | (527) |  |
Capital expenditures | [3] |  | [2] |  |  |
Assets | [4] | 830 |  | 1,039 |  |
Operating Segments [Member] | Corporate and Other [Member] |  |  |  |  |  |
Revenues | [1],[2] |  |  |  |  |
Operating costs and expenses | [2] |  |  |  |  |
Depreciation expense | [2] | (11) |  | (60) |  |
General and administrative and other expenses | [2] | (1,379) |  | (1,336) |  |
Operating income (loss) | [2] | (1,390) |  | (1,396) |  |
Capital expenditures | [2],[3] |  |  | 626 |  |
Assets | [2],[4] | $ 6,680 |  | $ 6,859 |  |
[1] | Amounts are principally revenues from external customers and exclude equity in earnings of affiliates.
[2] | Includes assets related to discontinued operations of $4.7 million and $5.2 million at December 31, 2020 and 2019, respectively.
[3] | Includes expenditures for property and deferred costs.
[4] | Segment assets are located in the United States.

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