Non-Performing Loans and Impaired Loans (Details 2) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012 NoOfDefaults	Sep. 30, 2011 NoOfDefaults
Loans classified as troubled debt restructuring
Number of Defaults	7	6
Unpaid Principal Balance	$ 2,411	$ 1,569
Commercial [Member]
Loans classified as troubled debt restructuring
Number of Defaults	5	2
Unpaid Principal Balance	1,734	361
Commercial [Member] | Owner occupied real estate [Member]
Loans classified as troubled debt restructuring
Number of Defaults	3
Unpaid Principal Balance	1,473
Commercial [Member] | Non owner occupied real estate [Member]
Loans classified as troubled debt restructuring
Number of Defaults	2
Unpaid Principal Balance	261
Commercial [Member] | Residential development [Member]
Loans classified as troubled debt restructuring
Number of Defaults
Unpaid Principal Balance
Commercial [Member] | Development & Spec Land Loans [Member]
Loans classified as troubled debt restructuring
Number of Defaults
Unpaid Principal Balance
Commercial [Member] | Commercial and industrial [Member]
Loans classified as troubled debt restructuring
Number of Defaults		2
Unpaid Principal Balance		361
Real estate [Member]
Loans classified as troubled debt restructuring
Number of Defaults	2	2
Unpaid Principal Balance	677	1,143
Real estate [Member] | Residential mortgage [Member]
Loans classified as troubled debt restructuring
Number of Defaults	2	2
Unpaid Principal Balance	677	1,143
Real estate [Member] | Residential construction [Member]
Loans classified as troubled debt restructuring
Number of Defaults
Unpaid Principal Balance
Real estate [Member] | Mortgage warehouse [Member]
Loans classified as troubled debt restructuring
Number of Defaults
Unpaid Principal Balance
Consumer [Member]
Loans classified as troubled debt restructuring
Number of Defaults		2
Unpaid Principal Balance		65
Consumer [Member] | Direct Installment [Member]
Loans classified as troubled debt restructuring
Number of Defaults
Unpaid Principal Balance
Consumer [Member] | Direct Installment Purchased [Member]
Loans classified as troubled debt restructuring
Number of Defaults
Unpaid Principal Balance
Consumer [Member] | Home Equity [Member]
Loans classified as troubled debt restructuring
Number of Defaults		2
Unpaid Principal Balance		$ 65