Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Loans and Allowance for Loan Losses by Evaluation Method (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Loans and Allowance for Loan Losses by Evaluation Method [Line Items]
Allowance for loan losses, individually evaluated for impairment	$ 282	$ 624
Allowance for loan losses, collectively evaluated for impairment	7,981	7,603
Allowance for loan losses	8,263	8,227	8,349	8,068
Loans individually evaluated for impairment	15,121	12,985
Loans collectively evaluated for impairment	591,198	583,610
Total loans	606,319	596,595
Real Estate Construction [Member]
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Loans and Allowance for Loan Losses by Evaluation Method [Line Items]
Allowance for loan losses, collectively evaluated for impairment	612	863
Allowance for loan losses	612	863	1,070	1,079
Loans collectively evaluated for impairment	45,562	45,925
Total loans	45,562	45,925
Consumer Real Estate [Member]
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Loans and Allowance for Loan Losses by Evaluation Method [Line Items]
Allowance for loan losses, individually evaluated for impairment	14	10
Allowance for loan losses, collectively evaluated for impairment	1,648	1,687
Allowance for loan losses	1,662	1,697	2,263	1,245
Loans individually evaluated for impairment	819	780
Loans collectively evaluated for impairment	146,220	144,719
Total loans	147,039	145,499
Commercial Real Estate [Member]
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Loans and Allowance for Loan Losses by Evaluation Method [Line Items]
Allowance for loan losses, individually evaluated for impairment	258	610
Allowance for loan losses, collectively evaluated for impairment	3,279	3,075
Allowance for loan losses	3,537	3,685	3,442	3,515
Loans individually evaluated for impairment	13,624	12,079
Loans collectively evaluated for impairment	297,138	299,187
Total loans	310,762	311,266
Commercial Non Real Estate [Member]
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Loans and Allowance for Loan Losses by Evaluation Method [Line Items]
Allowance for loan losses, individually evaluated for impairment	10	4
Allowance for loan losses, collectively evaluated for impairment	1,465	985
Allowance for loan losses	1,475	989	959	1,473
Loans individually evaluated for impairment	678	102
Loans collectively evaluated for impairment	32,735	31,160
Total loans	33,413	31,262
Public Sector and IDA [Member]
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Loans and Allowance for Loan Losses by Evaluation Method [Line Items]
Allowance for loan losses, collectively evaluated for impairment	327	132
Allowance for loan losses	327	132	142	232
Loans collectively evaluated for impairment	41,361	34,220
Total loans	41,361	34,220
Consumer Non Real Estate [Member]
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Loans and Allowance for Loan Losses by Evaluation Method [Line Items]
Allowance for loan losses, collectively evaluated for impairment	602	576
Allowance for loan losses	602	576	424	403
Loans individually evaluated for impairment		24
Loans collectively evaluated for impairment	28,182	28,399
Total loans	28,182	28,423
Unallocated [Member]
Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Loans and Allowance for Loan Losses by Evaluation Method [Line Items]
Allowance for loan losses, collectively evaluated for impairment	48	285
Allowance for loan losses	$ 48	$ 285	$ 49	$ 121

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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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.

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