Note 5 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Loans and Allowance for Loan Losses by Evaluation Method - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
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	$ 45	$ 282
Allowance for loan losses, collectively evaluated for impairment	8,252	7,981
Allowance for loan losses	8,297	8,263	$ 8,227	$ 8,349
Loans individually evaluated for impairment	15,346	15,121
Loans collectively evaluated for impairment	604,538	591,198
Total loans	619,884	606,319
Real Estate Construction Portfolio Segment[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	0	0
Allowance for loan losses, collectively evaluated for impairment	576	612
Allowance for loan losses	576	612	863	1,070
Loans individually evaluated for impairment	718	0
Loans collectively evaluated for impairment	47,533	45,562
Total loans	48,251	45,562
Consumer Real Estate Portfolio Segment [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	22	14
Allowance for loan losses, collectively evaluated for impairment	1,844	1,648
Allowance for loan losses	1,866	1,662	1,697	2,263
Loans individually evaluated for impairment	962	819
Loans collectively evaluated for impairment	142,542	146,220
Total loans	143,504	147,039
Commercial Real Estate Portfolio Segment [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	23	258
Allowance for loan losses, collectively evaluated for impairment	4,086	3,279
Allowance for loan losses	4,109	3,537	3,685	3,442
Loans individually evaluated for impairment	12,575	13,624
Loans collectively evaluated for impairment	296,803	297,138
Total loans	309,378	310,762
Commercial Non Real Estate Segment [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	0	10
Allowance for loan losses, collectively evaluated for impairment	655	1,465
Allowance for loan losses	655	1,475	989	959
Loans individually evaluated for impairment	1,091	678
Loans collectively evaluated for impairment	36,480	32,735
Total loans	37,571	33,413
Public Sector and IDA Portfolio Segment[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	0	0
Allowance for loan losses, collectively evaluated for impairment	436	327
Allowance for loan losses	436	327	132	142
Loans individually evaluated for impairment	0	0
Loans collectively evaluated for impairment	51,335	41,361
Total loans	51,335	41,361
Consumer Portfolio Segment [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	0	0
Allowance for loan losses, collectively evaluated for impairment	627	602
Allowance for loan losses	627	602	576	424
Loans individually evaluated for impairment	0	0
Loans collectively evaluated for impairment	29,845	28,182
Total loans	29,845	28,182
Unallocated Financing Receivables [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	0	0
Allowance for loan losses, collectively evaluated for impairment	28	48
Allowance for loan losses	28	48	$ 285	$ 49
Loans individually evaluated for impairment	0	0
Loans collectively evaluated for impairment	0	0
Total loans	$ 0	$ 0

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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 valuation allowance for financing receivables that are expected to be uncollectible that were individually 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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
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-Publisher FASB
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-Topic 942
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-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section L
-Subsection 1

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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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