Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Impaired Loans (USD $)	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
With no related allowance recorded:
With no related allowance recorded-Recorded Investment	$ 12,230,000		$ 11,717,000
With no related allowance recorded-Unpaid Principal Balance	13,573,000		13,511,000
With no related allowance recorded-Average Recorded Investment	12,374,000	14,140,000
With no related allowance recorded-Interest Income Recognized	131,000	199,000
With an allowance recorded:
With related allowance recorded-Recorded Investment	0		7,000
With related allowance recorded-Unpaid Principal Balance			7,000
With related allowance recorded-Related Allowance			7,000
With related allowance recorded-Average Recorded Investment	2,000	7,160,000
Impaired loans	12,230,000		11,724,000
Unpaid Principal Balance	13,573,000		13,518,000
Related Allowance			7,000
Average Recorded Investment	12,376,000	21,300,000
Interest Income Recognized	131,000	199,000
Commercial Portfolio Segment [Member]
With no related allowance recorded:
With no related allowance recorded-Recorded Investment			2,000
With no related allowance recorded-Unpaid Principal Balance	101,000		104,000
With no related allowance recorded-Average Recorded Investment	1,000	2,000
With no related allowance recorded-Interest Income Recognized		86,000
With an allowance recorded:
With related allowance recorded-Average Recorded Investment		6,078,000
Impaired loans			2,000
Unpaid Principal Balance	101,000		104,000
Average Recorded Investment	1,000	6,080,000
Interest Income Recognized		86,000
Commercial Real Estate Portfolio Segment [Member]
With no related allowance recorded:
With no related allowance recorded-Recorded Investment	8,272,000		7,398,000
With no related allowance recorded-Unpaid Principal Balance	9,113,000		8,249,000
With no related allowance recorded-Average Recorded Investment	8,296,000	7,941,000
With no related allowance recorded-Interest Income Recognized	95,000	72,000
With an allowance recorded:
With related allowance recorded-Average Recorded Investment		158,000
Impaired loans	8,272,000		7,398,000
Unpaid Principal Balance	9,113,000		8,249,000
Average Recorded Investment	8,296,000	8,099,000
Interest Income Recognized	95,000	72,000
Real Estate Construction [Member]
With no related allowance recorded:
With no related allowance recorded-Unpaid Principal Balance	287,000		732,000
With an allowance recorded:
With related allowance recorded-Average Recorded Investment		260,000
Unpaid Principal Balance	287,000		732,000
Average Recorded Investment		260,000
Residential Portfolio Segment [Member]
With no related allowance recorded:
With no related allowance recorded-Recorded Investment	3,406,000		3,764,000
With no related allowance recorded-Unpaid Principal Balance	3,433,000		3,793,000
With no related allowance recorded-Average Recorded Investment	3,525,000	4,821,000
With no related allowance recorded-Interest Income Recognized	32,000	32,000
With an allowance recorded:
With related allowance recorded-Average Recorded Investment		662,000
Impaired loans	3,406,000		3,764,000
Unpaid Principal Balance	3,433,000		3,793,000
Average Recorded Investment	3,525,000	5,483,000
Interest Income Recognized	32,000	32,000
Consumer Portfolio Segment [Member]
With no related allowance recorded:
With no related allowance recorded-Recorded Investment	552,000		553,000
With no related allowance recorded-Unpaid Principal Balance	639,000		633,000
With no related allowance recorded-Average Recorded Investment	552,000	588,000
With no related allowance recorded-Interest Income Recognized	4,000	9,000
With an allowance recorded:
With related allowance recorded-Recorded Investment			7,000
With related allowance recorded-Unpaid Principal Balance			7,000
With related allowance recorded-Related Allowance			7,000
With related allowance recorded-Average Recorded Investment	2,000	2,000
Impaired loans	552,000		560,000
Unpaid Principal Balance	639,000		640,000
Related Allowance			7,000
Average Recorded Investment	554,000	590,000
Interest Income Recognized	4,000	9,000
Construction to Permanent [Member]
With no related allowance recorded:
With no related allowance recorded-Average Recorded Investment		$ 788,000

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- Definition

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

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

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Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

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