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Note 18 - Fair Value and Interest Rate Risk (Details) - Quantitative Information About Level 3 Fair Value Measurements - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value (in Dollars)		$ 12,851	$ 11,717
Fair Value, Inputs, Level 3 [Member] | Fair Value of Collateral Approach [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair value (in Dollars)		$ 363	$ 859
Fair Value, Inputs, Level 3 [Member] | Minimum [Member] | Fair Value of Collateral Approach [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range		8.00%	8.00%	[1]
Weighted average		(8.00%)	(8.00%)	[1]
Fair Value, Inputs, Level 3 [Member] | Maximum [Member] | Fair Value of Collateral Approach [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range	[1]		22.00%
Weighted average	[1]		(22.00%)
Fair Value, Inputs, Level 3 [Member] | Weighted Average [Member] | Fair Value of Collateral Approach [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range		8.00%	13.00%	[1]
Weighted average		(8.00%)	(13.00%)	[1]
[1] The range and weighted average of qualitative factors such as economic conditions and estimated liquidation expenses are presented as a percent of the appraised value.

X

- Definition

Ratio of the appraised fair value of impaired loans produced by qualitative factors such as economic conditions and estimated liquidation expenses.

+ References

No definition available.

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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X

- Definition

Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953550-111524

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