Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Rental residential properties - accumulated depreciation	$ 13,337	$ 7,127
Equity:
Common stock, par value per share, in USD per share	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	54,465,184	55,581,005
Common stock, shares outstanding	54,465,184	55,581,005