CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Liabilities and shareholders’ equity
Investments at fair value	$ 39,297	$ 50,060
Accumulated depreciation on real estate and tangible water assets	$ 10,679	$ 10,019
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	25,836,000	25,821,000
Common stock, shares outstanding (in shares)	22,773,000	22,747,000
Treasury stock, common shares held (in shares)	3,063,000	3,073,000