Reporting Segments and Related Information - Additional Information (Details)	3 Months Ended
Mar. 31, 2018 USD ($) a segment field	Mar. 31, 2017 USD ($)
Revenue from External Customer [Line Items]
Number of reportable segments \| segment	5
Total revenues	$ 13,469,000	$ 5,702,000
Segment losses	11,924,000	9,264,000
Real estate - resort/residential
Revenue from External Customer [Line Items]
Total revenues	0
Real estate - resort/residential \| Operating Segments
Revenue from External Customer [Line Items]
Segment losses	415,000	630,000
Ranch operations
Revenue from External Customer [Line Items]
Total revenues	989,000	1,081,000
Ranch operations \| High Desert Hunt Club
Revenue from External Customer [Line Items]
Total revenues	$ 166,000	186,000
Area of land \| a	6,400
Number of hunting fields \| field	35
Ranch operations \| Operating Segments
Revenue from External Customer [Line Items]
Total revenues	$ 989,000	1,081,000
Segment losses	$ 1,389,000	$ 1,493,000

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- Definition

Area of land held.

+ References

No definition available.

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- Definition

Total costs of sales and operating expenses for the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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+ References

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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