REAL ESTATE PROPERTIES (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Multi-family properties by state
Revenue	$ 19,399	$ 17,766	$ 15,152	$ 14,078	$ 10,158	$ 8,517	$ 7,179	$ 5,951	$ 66,395	$ 31,805	$ 9,893
Multi-family residential | Revenue | Geographic concentration
Multi-family properties by state
Number of Units	7,609								7,609
Revenue									60,362
% of Total									100.00%
Multi-family residential | Revenue | Geographic concentration | Texas
Multi-family properties by state
Number of Units	2,018								2,018
Revenue									14,346
% of Total									24.00%
Multi-family residential | Revenue | Geographic concentration | Tennessee
Multi-family properties by state
Number of Units	1,244								1,244
Revenue									12,705
% of Total									21.00%
Multi-family residential | Revenue | Geographic concentration | Georgia
Multi-family properties by state
Number of Units	1,689								1,689
Revenue									12,328
% of Total									20.00%
Multi-family residential | Revenue | Geographic concentration | Florida
Multi-family properties by state
Number of Units	910								910
Revenue									10,909
% of Total									18.00%
Multi-family residential | Revenue | Geographic concentration | South Carolina
Multi-family properties by state
Number of Units	208								208
Revenue									2,348
% of Total									4.00%
Multi-family residential | Revenue | Geographic concentration | Alabama
Multi-family properties by state
Number of Units	208								208
Revenue									1,628
% of Total									3.00%
Multi-family residential | Revenue | Geographic concentration | Kansas
Multi-family properties by state
Number of Units	496								496
Revenue									1,677
% of Total									3.00%
Multi-family residential | Revenue | Geographic concentration | Indiana
Multi-family properties by state
Number of Units	400								400
Revenue									1,996
% of Total									3.00%
Multi-family residential | Revenue | Geographic concentration | Ohio
Multi-family properties by state
Number of Units	264								264
Revenue									1,851
% of Total									3.00%
Multi-family residential | Revenue | Geographic concentration | Arkansas
Multi-family properties by state
Number of Units	172								172
Revenue									$ 574
% of Total									1.00%