Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenues:
Total revenues	$ 35,657	$ 45,577	$ 51,147
Costs and Expenses:
Total expenses	43,201	53,483	54,343
Operating (loss) income	(7,544)	(7,906)	(3,196)
Other Income:
Gain on sale of real estate	0	1,044	0
Investment income	462	457	528
Other income	153	158	381
Total other income	615	1,659	909
Loss from operations before equity in earnings of unconsolidated joint ventures	(6,929)	(6,247)	(2,287)
Equity in earnings of unconsolidated joint ventures, net	4,227	7,098	6,324
(Loss) income before income taxes	(2,702)	851	4,037
Income tax (benefit) expense	(1,123)	336	1,125
Net (loss) income	(1,579)	515	2,912
Net loss attributable to non-controlling interest	(24)	(43)	(38)
Net (loss) income attributable to common stockholders	$ (1,555)	$ 558	$ 2,950
Net (loss) income per share attributable to common stockholders, basic (in dollars per share)	$ (0.07)	$ 0.03	$ 0.14
Net (loss) income per share attributable to common stockholders, diluted (in dollars per share)	$ (0.07)	$ 0.03	$ 0.14
Ranch operations
Costs and Expenses:
Total expenses	$ 5,411	$ 5,734	$ 6,112
Operating Segments
Revenues:
Total revenues	35,657	45,577	51,147
Costs and Expenses:
Operating (loss) income	2,597	4,644	9,612
Operating Segments | Real estate - commercial/industrial
Revenues:
Total revenues	9,403	9,438	8,272
Costs and Expenses:
Total expenses	6,529	7,100	6,694
Operating (loss) income	2,874	2,338	1,578
Operating Segments | Real estate - resort/residential
Costs and Expenses:
Operating (loss) income	(1,955)	(1,630)	(2,349)
Operating Segments | Mineral resources
Revenues:
Total revenues	5,983	14,153	15,116
Costs and Expenses:
Total expenses	2,964	7,796	7,396
Operating (loss) income	3,019	6,357	7,720
Operating Segments | Farming
Revenues:
Total revenues	16,434	18,648	23,836
Costs and Expenses:
Total expenses	16,201	18,673	18,984
Operating (loss) income	233	(25)	4,852
Operating Segments | Ranch operations
Revenues:
Total revenues	3,837	3,338	3,923
Costs and Expenses:
Operating (loss) income	(1,574)	(2,396)	(2,189)
Corporate
Costs and Expenses:
Total expenses	$ 10,141	$ 12,550	$ 12,808