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Note 14 - Commitments (Detail) - Outstanding Commitments and Contingent Liabilities (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Commitments | $ 92,135 | $ 82,041
Commitments to Extend Credit [Member] |  |
Commitments | 91,854 | 81,402
Standby Letters of Credit [Member] |  |
Commitments | $ 281 | $ 639

X
- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
Name: | us-gaap_OtherCommitment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant