XML 84 R41.htm IDEA: XBRL DOCUMENT v2.4.0.6
Regulatory Capital (Details)
Dec. 31, 2012
Sep. 30, 2012
Dec. 31, 2011
Regulatory Capital Details      
Tier I capital to total average assets, Bank (as a percentage) 8.12% 9.21% 7.76%
Tier I capital to risk-weighted assets, Bank (as a percentage) 10.23% 12.64% 11.22%
Total capital to risk-weighted assets, Bank (as a percentage) 11.48% 13.90% 12.48%
Tier I capital to total average assets, Regulatory Requirement (as a percentage) 4.00%   4.00%
Tier I capital to risk-weighted assets, Regulatory Requirement (as a percentage) 4.00% 4.00% 4.00%
Total capital to risk-weighted assets, Regulatory Requirement (as a percentage) 8.00%   8.00%