Business Segments - Additional Information (Details)	3 Months Ended	9 Months Ended
Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) segment	Sep. 30, 2015 USD ($)
Revenue from External Customer [Line Items]
Number of reportable segments \| segment			5
Total revenues	$ 13,079,000	$ 11,946,000	$ 32,881,000	$ 35,579,000
Segment losses	14,988,000	15,487,000	37,714,000	39,402,000
Operating Segments \| Real estate - resort/residential
Revenue from External Customer [Line Items]
Total revenues			0
Segment losses	$ 323,000	$ 558,000	$ 1,252,000	$ 1,885,000

Total costs of sales and operating expenses for the period.

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=26872669&loc=d3e20235-122688

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+ 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=26872669&loc=d3e20235-122688

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