Note 18 - Fair Value of Financial Instruments (Details) - Quantitative Information About Non-Recurring Level 3 Fair Value of Financial Instruments and the Fair Value Measurements (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2012
Assets:
Fair Value (in Dollars)	28,500	$ 26,954
Fair Value (in Dollars)	28,500	26,954
Impaired Loans [Member] | Income Approach Valuation Technique [Member] | Minimum [Member]
Assets:
Range (Weighted Average)	7.30%
Range (Weighted Average)	0.50%
Impaired Loans [Member] | Income Approach Valuation Technique [Member] | Maximum [Member]
Assets:
Range (Weighted Average)	8.50%
Range (Weighted Average)	81.70%
Impaired Loans [Member] | Income Approach Valuation Technique [Member] | Weighted Average [Member]
Assets:
Range (Weighted Average)	(7.80%)
Range (Weighted Average)	(21.30%)
Impaired Loans [Member] | Income Approach Valuation Technique [Member]
Assets:
Fair Value (in Dollars)	6,981
Fair Value (in Dollars)	6,981
Impaired Loans [Member] | Sales Approach Valuation Technique [Member] | Minimum [Member]
Assets:
Range (Weighted Average)	1.80%
Range (Weighted Average)	(41.50%)
Impaired Loans [Member] | Sales Approach Valuation Technique [Member] | Maximum [Member]
Assets:
Range (Weighted Average)	89.40%
Range (Weighted Average)	40.00%
Impaired Loans [Member] | Sales Approach Valuation Technique [Member] | Weighted Average [Member]
Assets:
Range (Weighted Average)	(20.00%)
Impaired Loans [Member] | Sales Approach Valuation Technique [Member]
Assets:
Fair Value (in Dollars)	6,935
Fair Value (in Dollars)	6,935
Impaired Loans [Member] | Blended Income and Sales Approach [Member] | Minimum [Member]
Assets:
Range (Weighted Average)	5.80%
Range (Weighted Average)	0.90%
Range (Weighted Average)	(55.00%)
Impaired Loans [Member] | Blended Income and Sales Approach [Member] | Maximum [Member]
Assets:
Range (Weighted Average)	11.00%
Range (Weighted Average)	74.40%
Range (Weighted Average)	25.00%
Impaired Loans [Member] | Blended Income and Sales Approach [Member] | Weighted Average [Member]
Assets:
Range (Weighted Average)	(8.00%)
Range (Weighted Average)	(30.00%)
Impaired Loans [Member] | Blended Income and Sales Approach [Member]
Assets:
Fair Value (in Dollars)	8,258
Fair Value (in Dollars)	8,258
Other Real Estate Owned [Member] | Income Approach Valuation Technique [Member] | Minimum [Member]
Assets:
Range (Weighted Average)	9.00%
Range (Weighted Average)	0.90%
Other Real Estate Owned [Member] | Income Approach Valuation Technique [Member] | Maximum [Member]
Assets:
Range (Weighted Average)	12.00%
Range (Weighted Average)	4.90%
Other Real Estate Owned [Member] | Income Approach Valuation Technique [Member] | Weighted Average [Member]
Assets:
Range (Weighted Average)	(9.10%)
Range (Weighted Average)	(1.00%)
Other Real Estate Owned [Member] | Income Approach Valuation Technique [Member]
Assets:
Fair Value (in Dollars)	4,768
Fair Value (in Dollars)	4,768
Other Real Estate Owned [Member] | Sales Approach Valuation Technique [Member] | Minimum [Member]
Assets:
Range (Weighted Average)	0.00%
Range (Weighted Average)	(11.90%)
Other Real Estate Owned [Member] | Sales Approach Valuation Technique [Member] | Maximum [Member]
Assets:
Range (Weighted Average)	36.90%
Range (Weighted Average)	15.00%
Other Real Estate Owned [Member] | Sales Approach Valuation Technique [Member] | Weighted Average [Member]
Assets:
Range (Weighted Average)	(9.60%)
Other Real Estate Owned [Member] | Sales Approach Valuation Technique [Member]
Assets:
Fair Value (in Dollars)	587
Fair Value (in Dollars)	587
Other Real Estate Owned [Member] | Blended Income and Sales Approach [Member] | Minimum [Member]
Assets:
Range (Weighted Average)	7.50%
Range (Weighted Average)	0.00%
Range (Weighted Average)	(25.00%)
Other Real Estate Owned [Member] | Blended Income and Sales Approach [Member] | Maximum [Member]
Assets:
Range (Weighted Average)	8.00%
Range (Weighted Average)	6.20%
Range (Weighted Average)	0.00%
Other Real Estate Owned [Member] | Blended Income and Sales Approach [Member] | Weighted Average [Member]
Assets:
Range (Weighted Average)	(7.70%)
Range (Weighted Average)	(3.00%)
Other Real Estate Owned [Member] | Blended Income and Sales Approach [Member]
Assets:
Fair Value (in Dollars)	971
Fair Value (in Dollars)	971