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Note 11 - Other Borrowings (Details) - Other Borrowings - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Note 11 - Other Borrowings (Details) - Other Borrowings [Line Items]
Weighted-average interest rate	1.65%	1.77%
Other borrowings	$ 9,939	$ 10,624
Fixed Rate Amortizing [Member]
Note 11 - Other Borrowings (Details) - Other Borrowings [Line Items]
Maturity range, minimum	Jul. 01, 2017
Maturity range, maximum	Oct. 01, 2028
Weighted-average interest rate	4.02%
Other borrowings	$ 1,691	2,376
Junior Subordinated Debt [Member]
Note 11 - Other Borrowings (Details) - Other Borrowings [Line Items]
Maturity range, minimum	Dec. 21, 2037
Maturity range, maximum	Dec. 21, 2037
Weighted-average interest rate	1.95%
Other borrowings	$ 8,248	$ 8,248
Minimum [Member] | Fixed Rate Amortizing [Member]
Note 11 - Other Borrowings (Details) - Other Borrowings [Line Items]
Stated interest rate range	2.99%
Minimum [Member] | Junior Subordinated Debt [Member]
Note 11 - Other Borrowings (Details) - Other Borrowings [Line Items]
Stated interest rate range	1.90%
Maximum [Member] | Fixed Rate Amortizing [Member]
Note 11 - Other Borrowings (Details) - Other Borrowings [Line Items]
Stated interest rate range	4.47%
Maximum [Member] | Junior Subordinated Debt [Member]
Note 11 - Other Borrowings (Details) - Other Borrowings [Line Items]
Stated interest rate range	1.99%

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The average effective interest rate during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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Contractual interest rate for funds borrowed, under the debt agreement.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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Latest date the outstanding debt instruments are required to be repaid, in CCYY-MM-DD format.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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Earliest date the outstanding debt instruments are required to be repaid, in CCYY-MM-DD format.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
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The carrying amount as of the balance sheet date for the aggregate of other miscellaneous borrowings owed by the reporting entity.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
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