Note 9 - Deposits (Detail) - Interest Expense on Time Deposits (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Interest bearing demand	$ 792	$ 756	$ 927
Money market accounts	5,938	7,351	8,733
Saving accounts	365	482	694
Time deposits	40,278	53,625	73,808
Total	$ 47,373	$ 62,214	$ 84,162

Aggregate amount of all interest expense on domestic deposit liabilities.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.6)

-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 6

-Article 9

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Amount of interest expense on time deposit liabilities.

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