Insurance Activity (Details Textual)	6 Months Ended
	Jun. 30, 2012	Aug. 31, 2009
Component of Insurance Activity (Textual) [Abstract]
Quoted percentage to share base		50.00%
WMMRC [Member]
Component of Insurance Activity (Textual) [Abstract]
Second loss layer risk percentage of range minimum		5.00%
Second loss layer risk percentage of range maximum		10.00%
First loss layer risk percentage of range minimum		4.00%
First loss layer risk percentage of range maximum		5.00%
Minimum period of reinsurance agreements	5 years
Maximum period of reinsurance agreements	10 years