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Note 7 - Deposits (Details) - Deposit Composition and Interest Rate (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Deposit Composition and Interest Rate [Abstract]
Noninterest bearing demand	$ 849,409	$ 881,390	$ 688,506
Interest bearing transaction	118,580	113,813	80,105
Interest bearing transaction	0.26%	0.34%	0.38%
Savings and money market	1,811,088	1,374,869	1,068,370
Savings and money market	0.35%	0.48%	0.72%
Time, $100,000 or more	203,706	232,875	332,470
Time, $100,000 or more	0.88%	1.12%	1.08%
Other time	242,631	294,275	222,644
Other time	0.54%	0.71%	1.72%
Total	$ 3,225,414	$ 2,897,222	$ 2,392,095

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The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.12)

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The aggregate of all domestic and foreign interest-bearing deposit liabilities.

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The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity.

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The aggregate amount of domestic and foreign time deposit liabilities (including certificates of deposits, individual retirement accounts and open accounts) in denominations of $100,000 or more.

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-Publisher SEC

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The aggregate amount of domestic or foreign time deposits (including certificates of deposits, individual retirement accounts and open accounts) that total to less than $100,000.

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The weighted average interest rate of all domestic and foreign time deposits (including certificates of deposits, individual retirement accounts and open accounts) in denominations of $100,000 or more, at the balance sheet date.

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The weighted average interest rate of domestic and foreign time deposits (including certificates of deposits, individual retirement accounts and open accounts) in denominations of $100,000 or more, with maturities of three months or less.

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