Loans (Details 6) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Allowance for loan losses:
Allowance at beginning of the period	$ 1,942	$ 1,656
Provisions (credit)	99us-gaap_ProvisionForLoanAndLeaseLosses	167us-gaap_ProvisionForLoanAndLeaseLosses
Loans charged-off	(84)	(22)
Recoveries	18	20
Allowance at the end of the period	1,975	1,821
Allowance for loan losses
Allowance for impaired loans	212		229
Allowance for non-impaired loans	1,763		1,713
Total	1,975	1,821
Loans
Impaired loans	8,739		9,295
Non-impaired loans	383,024		373,868
Total Loans	390,408		383,163
Consumer
Allowance for loan losses:
Allowance at beginning of the period	10	18
Provisions (credit)	(5)	(6)
Recoveries	4	3
Allowance at the end of the period	9	15
Allowance for loan losses
Allowance for impaired loans	4		4
Allowance for non-impaired loans	5		6
Total	9	15
Loans
Impaired loans	15		25
Non-impaired loans	1,252		1,347
Total Loans	1,267		1,372
Residential 1-4 family
Allowance for loan losses:
Allowance at beginning of the period	654	462
Provisions (credit)	111	86
Recoveries		4
Allowance at the end of the period	765	552
Allowance for loan losses
Allowance for impaired loans	201		144
Allowance for non-impaired loans	564		510
Total	765	552
Loans
Impaired loans	5,982		6,664
Non-impaired loans	138,648		127,420
Total Loans	144,630		134,084
Home equity and lines of credit
Allowance for loan losses:
Allowance at beginning of the period	584	605
Provisions (credit)	10	6
Loans charged-off	(75)	(22)
Recoveries		11
Allowance at the end of the period	519	600
Allowance for loan losses
Allowance for impaired loans	7		68
Allowance for non-impaired loans	512		516
Total	519	600
Loans
Impaired loans	945		800
Non-impaired loans	77,492		78,971
Total Loans	78,437		79,771
Commercial real estate
Allowance for loan losses:
Allowance at beginning of the period	400	321
Provisions (credit)	25	13
Allowance at the end of the period	425	334
Allowance for loan losses
Allowance for non-impaired loans	425		400
Total	425	334
Loans
Impaired loans	119
Non-impaired loans	115,009		108,025
Total Loans	115,128		108,025
Commercial business
Allowance for loan losses:
Allowance at beginning of the period	28	29
Provisions (credit)	(4)	(3)
Allowance at the end of the period	24	26
Allowance for loan losses
Allowance for non-impaired loans	24		28
Total	24	26
Loans
Non-impaired loans	6,026		7,698
Total Loans	6,026		7,698
Commercial construction
Allowance for loan losses:
Allowance at beginning of the period	30	24
Provisions (credit)	(4)	9
Allowance at the end of the period	26	33
Allowance for loan losses
Allowance for non-impaired loans	26		30
Total	26	33
Loans
Non-impaired loans	6,595		8,181
Total Loans	6,595		8,181
SBA
Allowance for loan losses:
Allowance at beginning of the period	236	197
Provisions (credit)	(34)	62
Loans charged-off	(9)
Recoveries	14	2
Allowance at the end of the period	207	261
Allowance for loan losses
Allowance for impaired loans			13
Allowance for non-impaired loans	207		223
Total	207	261
Loans
Impaired loans	1,678		1,806
Non-impaired loans	36,647		42,226
Total Loans	$ 38,325		$ 44,032

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Amount of recovery of financing receivables doubtful of collection that were previously charged off.

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Amount of direct write-downs of financing receivables charged against the allowance.

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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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Amount of allowance for credit losses related to recorded investment.

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

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