Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Segments of loan portfolio and allowance for loan losses [Abstract]
Total Loans	$ 571,651				$ 554,105
Allowance for loan losses	6,959				6,815
Net loans	564,692				547,290
Individually evaluated for impairment	8,159				8,822
Collectively evaluated for impairment	563,492				545,283
Summary of allowance for loan losses into amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment [Abstract]
Individually evaluated for impairment	274				98
Collectively evaluated for impairment	6,685				6,717
Total	6,959	$ 7,233	$ 6,815	$ 7,098	6,815
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	6,922	7,233	6,815	7,098
Charge-offs	(90)	(641)	(115)	(697)
Recoveries	7	9	19	20
Provision	120	150	240	330
Balance at end of period	6,959	6,751	$ 6,959	6,751
Minimum [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Number of days past for loan to be considered impaired, Minimum			90 days
First Mortgage [Member] | Minimum [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Period of mortgage on real estate			15 years
First Mortgage [Member] | Maximum [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Period of mortgage on real estate			30 years
Second Mortgage [Member] | Maximum [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Period of mortgage on real estate			15 years
Residential Real Estate Loans [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total Loans	181,566				185,438
Individually evaluated for impairment	333				316
Collectively evaluated for impairment	181,233				185,122
Summary of allowance for loan losses into amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment [Abstract]
Individually evaluated for impairment	41				25
Collectively evaluated for impairment	890				853
Total	931	886	$ 931	946	878
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	923	886	878	946
Charge-offs	(17)	(7)	(34)	(45)
Recoveries	0	0	0	0
Provision	25	0	87	(22)
Balance at end of period	931	879	931	879
Commercial and Agricultural Real Estate Loans [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total Loans	224,450				215,584
Individually evaluated for impairment	5,578				6,112
Collectively evaluated for impairment	218,872				209,472
Summary of allowance for loan losses into amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment [Abstract]
Individually evaluated for impairment	48				72
Collectively evaluated for impairment	3,631				3,798
Total	3,679	4,530	3,870	4,558	3,870
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	3,699	4,530	3,870	4,558
Charge-offs	(56)	(465)	(56)	(475)
Recoveries	3	3	7	5
Provision	33	(259)	(142)	(279)
Balance at end of period	3,679	3,809	3,679	3,809
Construction Real Estate Loans [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total Loans	8,025				6,353
Individually evaluated for impairment	0				0
Collectively evaluated for impairment	8,025				6,353
Summary of allowance for loan losses into amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment [Abstract]
Individually evaluated for impairment	0				0
Collectively evaluated for impairment	14				26
Total	14	8	14	50	26
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	11	8	26	50
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	3	5	(12)	(37)
Balance at end of period	14	13	14	13
Consumer [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total Loans	8,374				8,497
Individually evaluated for impairment	0				0
Collectively evaluated for impairment	8,374				8,497
Summary of allowance for loan losses into amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment [Abstract]
Individually evaluated for impairment	0				0
Collectively evaluated for impairment	89				84
Total	89	83	89	105	84
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	82	83	84	105
Charge-offs	(17)	(6)	(24)	(14)
Recoveries	4	6	12	15
Provision	20	3	17	(20)
Balance at end of period	89	86	89	86
Other Commercial and Agricultural Loans [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total Loans	64,506				58,516
Individually evaluated for impairment	2,248				2,394
Collectively evaluated for impairment	62,258				56,122
Summary of allowance for loan losses into amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment [Abstract]
Individually evaluated for impairment	185				1
Collectively evaluated for impairment	1,317				1,223
Total	1,502	1,173	1,224	942	1,224
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	1,286	1,173	1,224	942
Charge-offs	0	(163)	(1)	(163)
Recoveries	0	0	0	0
Provision	216	141	279	372
Balance at end of period	1,502	1,151	1,502	1,151
State and Political Subdivision Loans [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total Loans	84,730				79,717
Individually evaluated for impairment	0				0
Collectively evaluated for impairment	84,730				79,717
Summary of allowance for loan losses into amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment [Abstract]
Individually evaluated for impairment	0				0
Collectively evaluated for impairment	568				545
Total	568	396	545	330	545
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	572	396	545	330
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	(4)	59	23	125
Balance at end of period	568	455	568	455
Unallocated [Member]
Summary of allowance for loan losses into amount required for loans individually evaluated for impairment and the amount required for loans collectively evaluated for impairment [Abstract]
Individually evaluated for impairment	0				0
Collectively evaluated for impairment	176				188
Total	176	157	176	167	$ 188
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	349	157	188	167
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	(173)	201	(12)	191
Balance at end of period	$ 176	$ 358	$ 176	$ 358