Note 8 - Loans and Allowance for Loan Losses (Details) - Loans by Class Modified as Troubled Debt Restructurings (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Real Estate:
Number of Loans			5	1
Real Estate Mortgage Residential [Member] \| TDR Identified Current Period [Member]
Real Estate:
Number of Loans	1	1	3	1
Pre-Modification Outstanding Recorded Investment	$ 18	$ 72	$ 309	$ 72
Post-Modification Outstanding Recorded Investment	18	72	309	72
Commercial And Industrial [Member] \| TDR Identified Current Period [Member]
Real Estate:
Number of Loans	1		1
Pre-Modification Outstanding Recorded Investment	2		2
Post-Modification Outstanding Recorded Investment	2		2
Consumer Secured [Member] \| TDR Identified Current Period [Member]
Real Estate:
Number of Loans	1		1
Pre-Modification Outstanding Recorded Investment	13		13
Post-Modification Outstanding Recorded Investment	13		13
TDR Identified Current Period [Member]
Real Estate:
Number of Loans	3	1	5	1
Pre-Modification Outstanding Recorded Investment	33	72	324	72
Post-Modification Outstanding Recorded Investment	$ 33	$ 72	$ 324	$ 72

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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 33

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953676-111524

+ Details

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- Definition

Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

+ Details

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- Definition

Pre-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

+ Details

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