Loans (Details 9) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012 Contract
Financing Receivables, Modifications Payment Defaults
Count	5
Default balance	$ 4,921
Commercial real estate [Member]
Financing Receivables, Modifications Payment Defaults
Count	3
Default balance	4,337
Residential mortgage [Member]
Financing Receivables, Modifications Payment Defaults
Count	2
Default balance	$ 584