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Note 5 - Loans (Detail) - Activity Within the Troubled Debt Resturing Loans (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011
New restructurings | $ 24,700,000 |
Charge-offs | 46,000 |
Accruing Troubled Debt Restructuring Member |  |
Beginning balance | 120,016,000 | 136,800,000
New restructurings | 53,958,000 | 60,863,000
Restructured loans restored to accrual status | 8,356,000 | 709,000
Charge-offs | (251,000) | (2,341,000)
Payments | (5,159,000) | (46,313,000)
Restructured loans placed on nonaccrual | (32,225,000) | (28,969,000)
Expiration of loan concession |  | (733,000)
Ending balance | 144,695,000 | 120,016,000
Non Accruing Troubled Debt Restructuring Member |  |
Beginning balance | 50,870,000 | 28,146,000
New restructurings | 12,304,000 | 13,269,000
Restructured loans restored to accrual status | (8,356,000) | (709,000)
Charge-offs | (4,182,000) | (7,303,000)
Payments | (33,931,000) | (3,355,000)
Foreclosures | (1,199,000) | (8,147,000)
Restructured loans placed on nonaccrual | 32,225,000 | 28,969,000
Ending balance | $ 47,731,000 | $ 50,870,000

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- Definition Amount of investment in financing receivables (after modification) modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953676-111524 + Details
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- Definition Reflects the amount of the write-down related to a troubled debt restructuring. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554 + Details
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