17. Fair Value Measurement: Fair Value Measurements, Nonrecurring (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013
Loans measured for impairment
Assets, Fair Value Disclosure, Nonrecurring	$ 24,094
Real estate owned
Assets, Fair Value Disclosure, Nonrecurring	17,131
Nonrecurring assets measured at fair value
Assets, Fair Value Disclosure, Nonrecurring	$ 41,225

This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

No definition available.

Name:	us-gaap_AssetsFairValueDisclosureNonrecurring
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant