| **Segment Information (Tables)** | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
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| **Segment Reporting [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| Information by Business Segment  | Information by business segment is as follows: Three Months Ended  June 30, Six Months Ended  June 30, 20162015 2016 2015Operating Revenues       Residential real estate$5,796 $4,020 $12,784 $9,430Commercial real estate— 4,660 — 4,660Resorts and leisure19,794 19,318 28,544 27,121Leasing operations2,321 2,167 4,682 4,212Forestry1,603 7,664 3,724 9,470Other37 17 71 44Total operating revenues$29,551 $37,846 $49,805 $54,937        Income (loss) before income taxes:       Residential real estate$1,081 $(378) $4,439 $6Commercial real estate (548) (8) (1,148) (612)Resorts and leisure2,795 3,466 994 535Leasing operations(336) 283 (379) 483Forestry1,241 6,770 3,094 8,408Other(1,675) (8,542) 7,354 (10,016)Total income (loss) before income taxes$2,558 $1,591 $14,354 $(1,196)         June 30, 2016 December 31, 2015Total Assets:   Residential real estate$106,306 $109,791Commercial real estate60,169 62,649Resorts and leisure73,873 75,441Leasing operations81,284 81,400Forestry20,102 20,244Other642,706 633,217Total assets$984,440 $982,742 |

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| - Definition
Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.
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No definition available.
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