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Note 10 - Segment Information - Reportable Segment Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Revenues | [1] | $ 12,443 | $ 7,540 | [2]
Operating costs and expenses |  | (5,600) | (4,726) | [2]
Depreciation expense |  | (1,188) | (1,289) | [2]
General and administrative expenses |  | (4,018) | (4,077) |
Operating income (loss) |  | 1,637 | (2,552) | [2]
Pension and other post-retirement expenses |  | (4,732) | (475) |
Interest expense |  | (122) | (134) |
Other income |  | 13 | 894 |
Loss from continuing operations |  | (3,204) | (2,267) |
Capital expenditures | [3] | 103 | 517 |
Assets | [4] | 37,919 | 38,470 | [2]
Operating Segments [Member] | Real Estate Segment [Member] |  |  |  |
Revenues | [1] | 3,400 | 772 |
Operating costs and expenses |  | (750) | (600) |
General and administrative expenses |  | (1,049) | (1,075) |
Operating income (loss) |  | 1,601 | (903) |
Pension and other post-retirement expenses |  |  |  |
Interest expense |  |  |  |
Other income |  |  |  |
Loss from continuing operations |  |  |  |
Capital expenditures | [3] | 74 | 436 |
Assets | [4] | 15,525 | 14,851 |
Operating Segments [Member] | Leasing Segment [Member] |  |  |  |
Revenues | [1] | 8,103 | 5,948 |
Operating costs and expenses |  | (3,495) | (2,933) |
Depreciation expense |  | (1,177) | (1,278) |
General and administrative expenses |  | (1,121) | (1,131) |
Operating income (loss) |  | 2,310 | 606 |
Pension and other post-retirement expenses |  |  |  |
Interest expense |  |  |  |
Other income |  |  |  |
Loss from continuing operations |  |  |  |
Capital expenditures | [3] | 29 | 81 |
Assets | [4] | 14,684 | 16,109 |
Operating Segments [Member] | Resort Amenities Segment [Member] |  |  |  |
Revenues | [1] | 940 | 820 |
Operating costs and expenses |  | (1,355) | (1,193) |
General and administrative expenses |  | (487) | (492) |
Operating income (loss) |  | (902) | (865) |
Pension and other post-retirement expenses |  |  |  |
Interest expense |  |  |  |
Other income |  |  |  |
Loss from continuing operations |  |  |  |
Capital expenditures | [3] | 0 | 0 |
Assets | [4] | 800 | 830 |
Operating Segments [Member] | Corporate and Other [Member] |  |  |  |
Depreciation expense |  | (11) | (11) | [2]
General and administrative expenses |  | (1,361) | (1,379) |
Operating income (loss) |  | (1,372) | (1,390) | [2]
Pension and other post-retirement expenses |  |  |  |
Interest expense |  |  |  |
Other income |  |  |  |
Loss from continuing operations |  |  |  |
Capital expenditures | [3] | 0 | 0 | [2]
Assets | [4] | $ 6,910 | $ 6,680 | [2]
[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 at December 31, 2020.
[3] | Includes expenditures for property and deferred costs.
[4] | Segment assets are located in the United States.

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