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Note 5 - Loans (Details) - Activity in the Allowance for Credit Losses (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2013 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Allowance for Loan Losses |  |  |  |  |  |
(Reversal)/provision for credit losses | $ (3,000) | $ (5,000) | $ (4,000) | $ (3,000) | $ (9,000) | $ 27,000
Transfers from reserve for off-balance sheet credit commitments |  |  |  |  | 706 | 268
Loans charged off |  |  |  | (20,442) | (32,791) | (77,626)
Recoveries of charged off loans |  |  |  | 14,009 | 18,127 | 11,407
Reserve for Off-Balance Sheet Credit Commitments [Member] |  |  |  |  |  |
Allowance for Loan Losses |  |  |  |  |  |
(Reversal)/provision for credit losses |  |  |  |  | (706) | (268)
Reserve for Off-Balance Sheet Credit Commitments [Member] | Beginning of Period [Member] |  |  |  |  |  |
Allowance for Loan Losses |  |  |  |  |  |
Balance |  |  |  | 1,363 | 2,069 | 2,337
Reserve for Off-Balance Sheet Credit Commitments [Member] | End of Period [Member] |  |  |  |  |  |
Allowance for Loan Losses |  |  |  |  |  |
Balance |  |  |  | 1,363 | 1,363 | 2,069
Beginning of Period [Member] |  |  |  |  |  |
Allowance for Loan Losses |  |  |  |  |  |
Balance |  |  |  | 183,322 | 206,280 | 245,231
End of Period [Member] |  |  |  |  |  |
Allowance for Loan Losses |  |  |  |  |  |
Balance |  |  |  | $ 173,889 | $ 183,322 | $ 206,280

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- Definition Transfers from/to reserve for off balance sheet credit commitments. + References No definition available. + Details
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- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953423-111524 + Details
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- Definition Amount of recovery of financing receivables doubtful of collection that were previously charged off. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953423-111524 + Details
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- Definition Amount of direct write-downs of financing receivables charged against the allowance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953423-111524 + Details
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- Definition Amount of expense related to estimated loss from loan and lease transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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