Note 4 - Loans and Allowance for Loan Losses (Details) - Loans Individually Evaluated for Impairment - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
With an allowance recorded:
Allowance for loan losses allocated	$ 2,212		$ 2,164
With no related allowance recorded:
Unpaid principal balance with no related allowance recorded			680
Recorded investment with no related allowance recorded			680
Commercial real estate:
Unpaid principal balance	20,787		20,180
Recorded investment	17,839		17,228
Allowance for loan losses allocated	2,212		2,164
Commercial real estate:
Average impaired loans	17,400	$ 20,373
Interest income recognized	168	150
Cash basis interest recognized	168	150
Commercial Real Estate Portfolio Segment [Member] \| Commercial Real Estate Owner Occupied [Member]
With an allowance recorded:
Unpaid Principal balance	204		204
Recorded investment - with allowance recorded	204		204
Allowance for loan losses allocated	204		204
With no related allowance recorded:
Unpaid principal balance with no related allowance recorded	3,797		3,812
Recorded investment with no related allowance recorded	3,250		3,265
Commercial real estate:
Allowance for loan losses allocated	204		204
Commercial real estate:
Average impaired loans - with allowance recorded	204	827
Interest income recognized - with allowance recorded	4
Cash basis interest recognized - - with allowance recorded	4
With no related allowance recorded:
Average impaired loans with no related allowance recorded	3,257	2,566
Interest income recognized with no related allowance recorded	43	30
Cash basis interest recognized with no related allowance recorded	43	30
Commercial Real Estate Portfolio Segment [Member] \| Commercial Real Estate Nonowner Occupied [Member]
With an allowance recorded:
Unpaid Principal balance	393		396
Recorded investment - with allowance recorded	393		396
Allowance for loan losses allocated	105		107
With no related allowance recorded:
Unpaid principal balance with no related allowance recorded	5,896		5,178
Recorded investment with no related allowance recorded	3,495		2,773
Commercial real estate:
Allowance for loan losses allocated	105		107
Commercial real estate:
Average impaired loans - with allowance recorded	395	7,618
Interest income recognized - with allowance recorded	5	16
Cash basis interest recognized - - with allowance recorded	5	16
With no related allowance recorded:
Average impaired loans with no related allowance recorded	3,134	300
Interest income recognized with no related allowance recorded	13	12
Cash basis interest recognized with no related allowance recorded	13	12
Commercial Real Estate Portfolio Segment [Member] \| Construction Loans [Member]
With no related allowance recorded:
Unpaid principal balance with no related allowance recorded	680
Recorded investment with no related allowance recorded	680
With no related allowance recorded:
Average impaired loans with no related allowance recorded	680	340
Commercial Portfolio Segment [Member]
With an allowance recorded:
Unpaid Principal balance	4,524
Recorded investment - with allowance recorded	4,524
Allowance for loan losses allocated	1,900
Commercial real estate:
Allowance for loan losses allocated	1,900
Consumer Portfolio Segment [Member] \| Home Equity Loan [Member]
With an allowance recorded:
Unpaid Principal balance	218		218
Recorded investment - with allowance recorded	218		218
Allowance for loan losses allocated	3		3
Commercial real estate:
Allowance for loan losses allocated	3		3
Commercial real estate:
Average impaired loans - with allowance recorded	219	219
Interest income recognized - with allowance recorded	2	3
Cash basis interest recognized - - with allowance recorded	2	3
Residential Portfolio Segment [Member]
With no related allowance recorded:
Unpaid principal balance with no related allowance recorded	730		1,001
Recorded investment with no related allowance recorded	730		1,001
With no related allowance recorded:
Average impaired loans with no related allowance recorded	731	1,412
Interest income recognized with no related allowance recorded	9	9
Cash basis interest recognized with no related allowance recorded	9	9
Commercial and Industrial Portfolio Segment [Member]
With an allowance recorded:
Unpaid Principal balance			4,355
Recorded investment - with allowance recorded			4,355
Allowance for loan losses allocated			1,850
With no related allowance recorded:
Unpaid principal balance with no related allowance recorded	4,345		4,336
Recorded investment with no related allowance recorded	4,345		4,336
Commercial real estate:
Allowance for loan losses allocated			$ 1,850
Commercial real estate:
Average impaired loans - with allowance recorded	4,439	2,701
Interest income recognized - with allowance recorded	41	25
Cash basis interest recognized - - with allowance recorded	41	25
With no related allowance recorded:
Average impaired loans with no related allowance recorded	4,341	4,390
Interest income recognized with no related allowance recorded	51	55
Cash basis interest recognized with no related allowance recorded	$ 51	$ 55

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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
-Paragraph 15
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