Real estate transactions (Details)	Denton Coonrod land	Maumelle apartments	Andrew B land	Wildflower Villas apartments	Huntington Ridge apartments	Laguna Vista apartments	Southwood Land
Balance of real estate at Dec. 31, 2011	0
No of units;	82.2	240	22.92	220	198	206	14.52
sale price of land;	1.8	0	1.3	19.6	0.6
New mortgage in millions;	0.8	16.8			15	17.7	0.6
Existing mortgage in millions;	0.04	16.1	2.1		14.6	17
Gain on sale of land parcel;	0.04		1.2	3.6
Accured interest rate;		3.00%			3.03%	3.03%
Closing stock Reserves;	1				1.2	1.1
Balance of real estate. at Dec. 31, 2012	0