Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Revenues:
Total revenues	$ 47,089		$ 63,098		$ 35,513
Costs and Expenses:
Total expenses	43,961		42,224		30,274
Operating income	3,128		20,874		5,239
Other Income:
Investment income	1,242		1,260		979
Interest income (expense)	(12)		0		(9)
Other income	113		98		61
Total other income	1,343		1,358		1,031
Income from operations before equity in earnings of unconsolidated joint ventures	4,471		22,232		6,270
Equity in earnings of unconsolidated joint ventures, net	2,535		916		541
Income before income tax expense	7,006		23,148		6,811
Income tax expense	2,723		7,367		2,852
Net income	4,283		15,781		3,959
Net loss attributable to non-controlling interest	(158)		(113)		(216)
Net income attributable to common stockholders	4,441		15,894		4,175
Net income per share attributable to common stockholders, basic	$ 0.22		$ 0.80		$ 0.23
Net income per share attributable to common stockholders, diluted	$ 0.22		$ 0.80		$ 0.22
Real estate - commercial/industrial [Member]
Revenues:
Total revenues	9,941		13,746		10,294
Costs and Expenses:
Total expenses	12,271		13,221		10,535
Operating income	(2,330)		525		(241)
Real estate- resort/residential [Member]
Revenues:
Total revenues	583		16,134		281
Costs and Expenses:
Total expenses	4,761		3,942		3,089
Operating income	(4,178)		12,192		(2,808)
Mineral resources [Member]
Revenues:
Total revenues	14,012	[1]	12,206	[1]	6,362	[1]
Costs and Expenses:
Total expenses	334		209		124
Operating income	13,678	[1]	11,997	[1]	6,238	[1]
Farming [Member]
Revenues:
Total revenues	22,553		21,012		18,576
Costs and Expenses:
Total expenses	13,323		12,575		10,914
Operating income	9,230		8,437		7,662
Corporate expenses [Member]
Costs and Expenses:
Total expenses	$ 13,272		$ 12,277		$ 5,612

[1] During the fourth quarter of 2012, the Company evaluated its operations and determined that an additional segment should be reported, Mineral Resources. Mineral Resources collects royalty income from oil and gas leases, rock and aggregate leases, and from a cement company.