Note 10 - Commitments and Financial Instruments with Off-Balance-Sheet Risk (Details) - Changes in Allowance for Indemnifications Losses (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2014	Mar. 31, 2013
Changes in Allowance for Indemnifications Losses [Abstract]
Allowance, beginning of period	$ 2,415	$ 2,092
Provision for indemnification losses	46	225
Payments		(235)
Allowance, end of period	$ 2,461	$ 2,082

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Amount of loss contingency liability.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

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- Definition

Amount of payments made reducing loss contingency liability.

+ References

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- Definition

Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

+ References

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