Unaudited Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues:
Total revenues	$ 8,946	$ 5,070	$ 19,608	$ 18,539
Costs and Expenses:
Total expenses	10,341	7,419	22,035	19,343
Operating loss	(1,395)	(2,349)	(2,427)	(804)
Other Income:
Investment income	329	346	678	629
Other income (loss), net	22	(10)	48	(24)
Total other income	351	336	726	605
Loss from operations before equity in earnings of unconsolidated joint ventures	(1,044)	(2,013)	(1,701)	(199)
Equity in earnings of unconsolidated joint ventures, net	1,971	652	2,847	819
Income (loss) before income tax expense	927	(1,361)	1,146	620
Income tax expense (benefit)	218	(348)	313	178
Net income (loss)	709	(1,013)	833	442
Net income (loss) attributable to non-controlling interest	2	(16)	7	(18)
Net income (loss) attributable to common stockholders	$ 707	$ (997)	$ 826	$ 460
Net income (loss) per share attributable to common stockholders, basic (in dollars per share)	$ 0.03	$ (0.04)	$ 0.03	$ 0.02
Net income (loss) per share attributable to common stockholders, diluted (in dollars per share)	$ 0.03	$ (0.04)	$ 0.03	$ 0.02
Real estate - commercial/industrial
Costs and Expenses:
Total expenses	$ 4,593	$ 1,388	$ 6,385	$ 2,707
Other Income:
Equity in earnings of unconsolidated joint ventures, net	1,971	652	2,847	819
Income (loss) before income tax expense	3,973	1,453	5,883	2,455
Real estate - resort/residential
Costs and Expenses:
Total expenses	642	433	1,290	848
Mineral resources
Costs and Expenses:
Total expenses	598	595	4,430	4,826
Other Income:
Loss from operations before equity in earnings of unconsolidated joint ventures	62	905	2,362	5,805
Farming
Costs and Expenses:
Total expenses	825	1,191	2,423	3,029
Other Income:
Loss from operations before equity in earnings of unconsolidated joint ventures	61	(649)	(722)	(1,292)
Ranch operations
Costs and Expenses:
Total expenses	1,393	1,348	2,743	2,737
Other Income:
Loss from operations before equity in earnings of unconsolidated joint ventures	(588)	(509)	(1,049)	(909)
Operating Segments | Real estate - commercial/industrial
Revenues:
Total revenues	6,595	2,189	9,421	4,343
Operating Segments | Mineral resources
Revenues:
Total revenues	660	1,500	6,792	10,631
Operating Segments | Farming
Revenues:
Total revenues	886	542	1,701	1,737
Operating Segments | Ranch operations
Revenues:
Total revenues	805	839	1,694	1,828
Corporate expenses
Costs and Expenses:
Total expenses	$ 2,290	$ 2,464	$ 4,764	$ 5,196