Business Segments - Information Pretaining to Assets of Segments (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Information pretaining to assets of the business segments
Identifiable assets	$ 327,856	$ 321,976	$ 288,091
Other Depreciation and Amortization	4,551	3,597	2,545
Depreciation and amortization	4,954	3,629	2,119
Capital expenditures	20,669	13,649	14,196
Real estate - commercial/industrial [Member]
Information pretaining to assets of the business segments
Identifiable assets	57,151	56,552	49,815
Depreciation and amortization	1,852	1,111	867
Capital expenditures	11,672	4,155	7,716
Real estate- resort/residential [Member]
Information pretaining to assets of the business segments
Identifiable assets	118,627	110,147	98,829
Depreciation and amortization	77	96	63
Capital expenditures	4,479	7,132	5,296
Mineral resources [Member]
Information pretaining to assets of the business segments
Identifiable assets	1,449	1,193	1,238
Depreciation and amortization	0	0	0
Capital expenditures	0	0	0
Farming [Member]
Information pretaining to assets of the business segments
Identifiable assets	29,538	24,326	26,366
Depreciation and amortization	1,384	1,293	1,193
Capital expenditures	3,379	1,477	389
Corporate [Member]
Information pretaining to assets of the business segments
Identifiable assets	121,091	129,758	111,843
Depreciation and amortization	1,238	1,097	422
Capital expenditures	$ 1,139	$ 885	$ 795