Unaudited Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues:
Total revenues	$ 4,775	$ 8,946	$ 15,088	$ 19,608
Costs and Expenses:
Total expenses	7,558	10,341	19,634	22,035
Operating loss	(2,783)	(1,395)	(4,546)	(2,427)
Other Income:
Investment income	151	329	379	678
Gain on sale of real estate	1,333	0	1,333	0
Other income, net	(12)	22	(4)	48
Total other income	1,472	351	1,708	726
Loss from operations before equity in earnings of unconsolidated joint ventures	(1,311)	(1,044)	(2,838)	(1,701)
Equity in earnings of unconsolidated joint ventures, net	1,181	1,971	2,536	2,847
(Loss) income before income tax expense	(130)	927	(302)	1,146
Income tax expense	196	218	708	313
Net (loss) income	(326)	709	(1,010)	833
Net income attributable to non-controlling interest	7	2	5	7
Net (loss) income attributable to common stockholders	$ (333)	$ 707	$ (1,015)	$ 826
Net (loss) income per share attributable to common stockholders, basic (in dollars per share)	$ (0.01)	$ 0.03	$ (0.04)	$ 0.03
Net (loss) income per share attributable to common stockholders, diluted (in dollars per share)	$ (0.01)	$ 0.03	$ (0.04)	$ 0.03
Real estate - commercial/industrial
Costs and Expenses:
Total expenses	$ 1,747	$ 4,593	$ 3,678	$ 6,385
Other Income:
Equity in earnings of unconsolidated joint ventures, net	1,181	1,971	2,536	2,847
(Loss) income before income tax expense	1,548	3,973	3,292	5,883
Real estate - resort/residential
Costs and Expenses:
Total expenses	326	642	952	1,290
Mineral resources
Costs and Expenses:
Total expenses	714	598	4,592	4,430
Other Income:
Loss from operations before equity in earnings of unconsolidated joint ventures	1,062	62	3,362	2,362
Farming
Costs and Expenses:
Total expenses	1,099	825	2,801	2,423
Other Income:
Loss from operations before equity in earnings of unconsolidated joint ventures	(890)	61	(1,640)	(722)
Ranch operations
Costs and Expenses:
Total expenses	1,178	1,393	2,584	2,743
Other Income:
Loss from operations before equity in earnings of unconsolidated joint ventures	(502)	(588)	(1,045)	(1,049)
Operating Segments | Real estate - commercial/industrial
Revenues:
Total revenues	2,114	6,595	4,434	9,421
Operating Segments | Mineral resources
Revenues:
Total revenues	1,776	660	7,954	6,792
Operating Segments | Farming
Revenues:
Total revenues	209	886	1,161	1,701
Operating Segments | Ranch operations
Revenues:
Total revenues	676	805	1,539	1,694
Corporate expenses
Costs and Expenses:
Total expenses	$ 2,494	$ 2,290	$ 5,027	$ 4,764