Note 5. Commitments and Contingent Liabilities - Commitments and Contingent Liabilities Textuals (Details) (Financial Standby Letter of Credit, USD $)	Sep. 30, 2013
Financial Standby Letter of Credit
Guarantor Obligations
Unused Standby Letters of Credit	$ 3,800,000
Loss Contingency Accrual, at Carrying Value	$ 0

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 4

-Subparagraph (b)(1)

-URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248

Name:	us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant