Unaudited Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues:
Total revenues	$ 15,432	$ 11,908	$ 33,971	$ 23,573
Costs and Expenses:
Total expenses	12,717	13,411	32,060	30,693
Operating income (loss)	2,715	(1,503)	1,911	(7,120)
Other Income:
Investment income	351	91	980	289
Other loss, net	(16)	(2)	(40)	(291)
Total other income (loss)	335	89	940	(2)
Income (loss) from operations before equity in earnings of unconsolidated joint ventures	3,050	(1,414)	2,851	(7,122)
Equity in earnings of unconsolidated joint ventures, net	1,592	1,724	2,411	3,512
Income (loss) before income tax expense	4,642	310	5,262	(3,610)
Income tax expense (benefit)	1,155	336	1,333	(1,468)
Net income (loss)	3,487	(26)	3,929	(2,142)
Net loss attributable to non-controlling interest	(1)	(4)	(19)	(42)
Net income (loss) attributable to common stockholders	$ 3,488	$ (22)	$ 3,948	$ (2,100)
Net income (loss) per share attributable to common stockholders, basic (in dollars per share)	$ 0.13	$ 0.00	$ 0.15	$ (0.10)
Net income (loss) per share attributable to common stockholders, diluted (in dollars per share)	$ 0.13	$ 0.00	$ 0.15	$ (0.10)
Real estate - commercial/industrial
Other Income:
Equity in earnings of unconsolidated joint ventures, net	$ 1,592	$ 1,724	$ 2,411	$ 3,512
Income (loss) before income tax expense	2,359	2,841	4,814	5,256
Real estate - resort/residential
Costs and Expenses:
Total expenses	471	271	1,319	1,401
Mineral resources
Other Income:
Income (loss) from operations before equity in earnings of unconsolidated joint ventures	781	614	6,586	2,281
Ranch operations
Other Income:
Income (loss) from operations before equity in earnings of unconsolidated joint ventures	(557)	(285)	(1,466)	(1,298)
Operating Segments | Real estate - commercial/industrial
Revenues:
Total revenues	2,445	2,432	6,788	6,704
Costs and Expenses:
Total expenses	1,678	1,315	4,385	4,960
Operating Segments | Mineral resources
Revenues:
Total revenues	1,355	1,142	11,986	4,662
Costs and Expenses:
Total expenses	574	528	5,400	2,381
Operating Segments | Farming
Revenues:
Total revenues	10,836	7,466	12,573	9,398
Costs and Expenses:
Total expenses	6,541	7,921	9,570	10,502
Operating Segments | Ranch operations
Revenues:
Total revenues	796	868	2,624	2,809
Costs and Expenses:
Total expenses	1,353	1,153	4,090	4,107
Corporate expenses
Costs and Expenses:
Total expenses	$ 2,100	$ 2,223	$ 7,296	$ 7,342