Unaudited Consolidated Statements of Operations - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenues:
Total revenues	$ 5,702,000	$ 12,953,000
Costs and Expenses:
Total expenses	9,458,000	12,770,000
Operating (loss) gain	(3,756,000)	183,000
Other Income:
Investment income	103,000	118,000
Other income	180,000	51,000
Total other income	283,000	169,000
(Loss) income from operations before equity in earnings of unconsolidated joint ventures	(3,473,000)	352,000
Equity in earnings of unconsolidated joint ventures, net	228,000	1,455,000
(Loss) Income before income tax expense	(3,245,000)	1,807,000
Income tax (benefit) expense	(1,332,000)	612,000
Net (loss) income	(1,913,000)	1,195,000
Net loss attributable to non-controlling interest	(11,000)	(14,000)
Net (loss) income attributable to common stockholders	$ (1,902,000)	$ 1,209,000
Net income (loss) per share attributable to common stockholders, basic, in dollars per share	$ (0.09)	$ 0.06
Net income (loss) per share attributable to common stockholders, diluted, in dollars per share	$ (0.09)	$ 0.06
Real estate - commercial/industrial
Other Income:
Equity in earnings of unconsolidated joint ventures, net	$ 228,000	$ 1,455,000
(Loss) Income before income tax expense	674,000	1,930,000
Mineral resources
Other Income:
(Loss) income from operations before equity in earnings of unconsolidated joint ventures	677,000	4,047,000
Ranch operations
Other Income:
(Loss) income from operations before equity in earnings of unconsolidated joint ventures	(412,000)	(509,000)
Operating Segments | Real estate - commercial/industrial
Revenues:
Total revenues	2,189,000	2,154,000
Costs and Expenses:
Total expenses	1,743,000	1,679,000
Operating Segments | Real estate - resort/residential
Revenues:
Total revenues	0
Costs and Expenses:
Total expenses	630,000	542,000
Operating Segments | Mineral resources
Revenues:
Total revenues	2,001,000	8,740,000
Costs and Expenses:
Total expenses	1,324,000	4,693,000
Operating Segments | Farming
Revenues:
Total revenues	431,000	1,221,000
Costs and Expenses:
Total expenses	1,323,000	1,506,000
Operating Segments | Ranch operations
Revenues:
Total revenues	1,081,000	838,000
Costs and Expenses:
Total expenses	1,493,000	1,347,000
Corporate expenses
Costs and Expenses:
Total expenses	$ 2,945,000	$ 3,003,000