Commitments and Contingencies: Schedule of Commitments and Contingencies (Details) (Contract or Notional Amount, USD $) In Thousands, unless otherwise specified	Jun. 30, 2012
Contract or Notional Amount
Commitments to extend credit	$ 847,593
Commitments to extend credit -- Standby letters of credit and financial guarantees	6,021
Commitments to originate loans held for sale	83,778
Commitments to extend credit -- Real estate secured by one- to four-family residential properties	$ 83,598