Note 9 - Fair Value Measurements and Disclosures (Details) (USD $) In Billions, unless otherwise specified	6 Months Ended
Jun. 30, 2014
Note 9 - Fair Value Measurements and Disclosures (Details) [Line Items]
Fair Value Inputs, Loss Severity	95.00%
Fair Value Inputs, Prepayment Rate	1.00%
Threshold for Identifying Banks with Trust Preferred Securities (in Dollars)	$ 15
Minimum Cost Saving for Refinance	2.00%
London Interbank Offered Rate (LIBOR) [Member] \| Minimum [Member]
Note 9 - Fair Value Measurements and Disclosures (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate	3.80%
London Interbank Offered Rate (LIBOR) [Member] \| Maximum [Member]
Note 9 - Fair Value Measurements and Disclosures (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate	8.58%

Minimum cost saving for refinance.

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- Definition

Threshold for identifying Banks with Trust Preferred Securities.

+ References

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

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- Definition

Loss, including interest and principal, incurred on a defaulted security, expressed as a percentage of the original principal balance, used as an input to measure fair value.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (bbb)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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Rate at which loans or a loan portfolio are expected to prepay principal balances, used as an input to measure fair value.

+ References

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