Business Segments - Revenue Components of Ranch Operations (Details)	12 Months Ended
	Dec. 31, 2016 USD ($) a field	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Revenue from External Customer [Line Items]
Area of land | a	270,000
Total revenues	$ 45,577,000	$ 51,147,000	$ 51,069,000
Ranch operations
Revenue from External Customer [Line Items]
Total revenues		3,923,000	3,534,000
Ranch operations | High Desert Hunt Club
Revenue from External Customer [Line Items]
Area of land | a	6,400
Hunting fields | field	35
Operating Segments | Ranch operations
Revenue from External Customer [Line Items]
Total revenues	$ 3,338,000	3,923,000	3,534,000
Operating Segments | Ranch operations | Game management
Revenue from External Customer [Line Items]
Total revenues	1,296,000	1,658,000	1,652,000
Operating Segments | Ranch operations | Grazing
Revenue from External Customer [Line Items]
Total revenues	1,187,000	1,484,000	1,155,000
Operating Segments | Ranch operations | High Desert Hunt Club
Revenue from External Customer [Line Items]
Total revenues	334,000	351,000	302,000
Operating Segments | Ranch operations | Filming and other
Revenue from External Customer [Line Items]
Total revenues	$ 521,000	$ 430,000	$ 425,000