Note 4 - Loans and Allowance for Loan Losses (Details) - Loans and Allowances for Loan Losses - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Recorded Investment in Loans:
Principal loan balance	$ 308,007	$ 304,943
Accrued interest receivable	949	1,036
Net deferred loan origination
fees and costs	569	506
Recorded investment in loans	309,525	306,485
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	3,294	5,039
Collectively evaluated for impairment	306,231	301,446
Receivables Acquired with Deteriorated Credit Quality [Member]
Net deferred loan origination
Recorded investment in loans	0	0
Real Estate Mortgage Portfolio Segment [Member] \| Real Estate Loan [Member]
Recorded Investment in Loans:
Principal loan balance	113,502	106,679
Accrued interest receivable	362	368
Net deferred loan origination
fees and costs	58	49
Recorded investment in loans	113,922	107,096
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	1,345	1,411
Collectively evaluated for impairment	112,577	105,685
Real Estate Mortgage Portfolio Segment [Member] \| Real Estate Loan [Member] \| Receivables Acquired with Deteriorated Credit Quality [Member]
Net deferred loan origination
Recorded investment in loans	0	0
Real Estate Mortgage Portfolio Segment [Member] \| Land Loan [Member]
Recorded Investment in Loans:
Principal loan balance	11,543	11,028
Accrued interest receivable	41	48
Net deferred loan origination
fees and costs	6	4
Recorded investment in loans	11,590	11,080
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	22	16
Collectively evaluated for impairment	11,568	11,064
Real Estate Mortgage Portfolio Segment [Member] \| Land Loan [Member] \| Receivables Acquired with Deteriorated Credit Quality [Member]
Net deferred loan origination
Recorded investment in loans	0	0
Real Estate Mortgage Portfolio Segment [Member] \| Construction Loans [Member]
Recorded Investment in Loans:
Principal loan balance	9,174	8,444
Accrued interest receivable	23	20
Net deferred loan origination
fees and costs	0	(1)
Recorded investment in loans	9,197	8,463
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	9,197	8,463
Real Estate Mortgage Portfolio Segment [Member] \| Construction Loans [Member] \| Receivables Acquired with Deteriorated Credit Quality [Member]
Net deferred loan origination
Recorded investment in loans	0	0
Real Estate Mortgage Portfolio Segment [Member] \| Commercial Real Estate Loan [Member]
Recorded Investment in Loans:
Principal loan balance	74,372	78,314
Accrued interest receivable	182	186
Net deferred loan origination
fees and costs	(38)	(20)
Recorded investment in loans	74,516	78,480
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	1,786	1,819
Collectively evaluated for impairment	72,730	76,661
Real Estate Mortgage Portfolio Segment [Member] \| Commercial Real Estate Loan [Member] \| Receivables Acquired with Deteriorated Credit Quality [Member]
Net deferred loan origination
Recorded investment in loans	0	0
Commercial Portfolio Segment [Member]
Recorded Investment in Loans:
Principal loan balance	23,164	28,282
Accrued interest receivable	66	131
Net deferred loan origination
fees and costs	(7)	(7)
Recorded investment in loans	23,223	28,406
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	0	1,642
Collectively evaluated for impairment	23,223	26,764
Commercial Portfolio Segment [Member] \| Receivables Acquired with Deteriorated Credit Quality [Member]
Net deferred loan origination
Recorded investment in loans	0	0
Consumer Portfolio Segment [Member] \| Home Equity And Second Mortgage [Member]
Recorded Investment in Loans:
Principal loan balance	38,094	37,513
Accrued interest receivable	130	131
Net deferred loan origination
fees and costs	550	481
Recorded investment in loans	38,774	38,125
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	141	151
Collectively evaluated for impairment	38,633	37,974
Consumer Portfolio Segment [Member] \| Home Equity And Second Mortgage [Member] \| Receivables Acquired with Deteriorated Credit Quality [Member]
Net deferred loan origination
Recorded investment in loans	0	0
Consumer Portfolio Segment [Member] \| Other Consumer Loan [Member]
Recorded Investment in Loans:
Principal loan balance	38,158	34,683
Accrued interest receivable	145	152
Net deferred loan origination
fees and costs	0	0
Recorded investment in loans	38,303	34,835
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	38,303	34,835
Consumer Portfolio Segment [Member] \| Other Consumer Loan [Member] \| Receivables Acquired with Deteriorated Credit Quality [Member]
Net deferred loan origination
Recorded investment in loans	$ 0	$ 0

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The balance of financing receivables that were collectively evaluated for impairment.

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-Publisher FASB

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-Topic 310

-SubTopic 10

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

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-Publisher FASB

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Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements.

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