Note 3 - Loans Receivable and Allowance for Loan Losses (Details) - Allowance for Loan Losses to Loan Portfolio Segment (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	$ 4,924	$ 5,681
Charge-offs	(10)	(217)
Recoveries	29	16
Provision	250us-gaap_ProvisionForLoanAndLeaseLosses
Ending Balance	5,193	5,480
Ending balance: individually evaluated for impairment		1,800	7
Ending balance: collectively evaluated for impairment	5,193	3,680	4,917
Total Allowance for Loan Losses	5,193	5,480
Total Loans ending balance	499,359	420,603	476,908
Ending balance: individually evaluated for impairment	12,230	20,947	11,724
Ending balance: collectively evaluated for impairment	487,129	399,656	465,184
Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	1,918	2,285
Charge-offs	0	(9)
Recoveries	16	0
Provision	(637)	95
Ending Balance	1,297	2,371
Ending balance: individually evaluated for impairment		1,500
Ending balance: collectively evaluated for impairment	1,297	871	1,918
Total Allowance for Loan Losses	1,297	2,371
Total Loans ending balance	52,476	38,838	53,973
Ending balance: individually evaluated for impairment		6,052	2
Ending balance: collectively evaluated for impairment	52,476	32,786	53,971
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	1,419	1,585
Charge-offs	0	0
Recoveries	0	0
Provision	605	(265)
Ending Balance	2,024	1,320
Ending balance: individually evaluated for impairment		17
Ending balance: collectively evaluated for impairment	2,024	1,303	1,419
Total Allowance for Loan Losses	2,024	1,320
Total Loans ending balance	281,387	217,674	254,505
Ending balance: individually evaluated for impairment	8,272	8,855	7,398
Ending balance: collectively evaluated for impairment	273,115	208,819	247,107
Real Estate Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	63	260
Charge-offs	0	0
Recoveries	0	0
Provision	159	0
Ending Balance	222	260
Ending balance: individually evaluated for impairment		260
Ending balance: collectively evaluated for impairment	222		63
Total Allowance for Loan Losses	222	260
Total Loans ending balance	7,024	260	3,096
Ending balance: individually evaluated for impairment		260
Ending balance: collectively evaluated for impairment	7,024		3,096
Construction to Permanent [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	215	25
Charge-offs	0	0
Recoveries	5	0
Provision	(29)	9
Ending Balance	191	34
Ending balance: collectively evaluated for impairment	191	34	215
Total Allowance for Loan Losses	191	34
Total Loans ending balance	9,988	12,718	10,627
Ending balance: collectively evaluated for impairment	9,988	12,718	10,627
Residential Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	831	795
Charge-offs	(3)	(178)
Recoveries	0	15
Provision	(98)	72
Ending Balance	730	704
Ending balance: individually evaluated for impairment		21
Ending balance: collectively evaluated for impairment	730	683	831
Total Allowance for Loan Losses	730	704
Total Loans ending balance	102,521	103,766	108,543
Ending balance: individually evaluated for impairment	3,406	5,192	3,764
Ending balance: collectively evaluated for impairment	99,115	98,574	104,779
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	478	534
Charge-offs	(7)	(30)
Recoveries	8	1
Provision	232	34
Ending Balance	711	539
Ending balance: individually evaluated for impairment		2	7
Ending balance: collectively evaluated for impairment	711	537	471
Total Allowance for Loan Losses	711	539
Total Loans ending balance	45,963	47,347	46,164
Ending balance: individually evaluated for impairment	552	588	560
Ending balance: collectively evaluated for impairment	45,411	46,759	45,604
Unallocated Financing Receivables [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	0	197
Charge-offs	0	0
Recoveries	0	0
Provision	18	55
Ending Balance	18	252
Ending balance: collectively evaluated for impairment	18	252
Total Allowance for Loan Losses	$ 18	$ 252

Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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

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

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- Definition

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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-Topic 942

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-Number Topic 6

-Section L

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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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Amount of expense related to estimated loss from loan and lease transactions.

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