Allowance for Loan Losses (Details) - USD ($) $ in Thousands		6 Months Ended	12 Months Ended
		Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2015	Dec. 31, 2014
Allowance for loan losses [Roll Forward]
Beginning balance		$ 11,786	$ 13,320
Adjustment for the sale of majority interest in consolidated subsidiary			(95)
Charge-offs		(307)	(4,308)
Recoveries		390	909
Provision		25	1,960
Ending balance		11,894	11,786
Ending allowance balance attributable to loans:
Individually evaluated for impairment				$ 2,972	$ 2,669
Collectively evaluated for impairment				8,922	9,117
Total ending allowance balance		11,786	13,320	11,894	11,786
Loans:
Individually evaluated for impairment				19,907	22,158
Collectively evaluated for impairment				753,183	732,688
Total Loans	[1]			773,090	754,846
Construction [Member]
Allowance for loan losses [Roll Forward]
Beginning balance		550	847
Adjustment for the sale of majority interest in consolidated subsidiary			0
Charge-offs		0	(1,186)
Recoveries		31	258
Provision		(21)	631
Ending balance		560	550
Ending allowance balance attributable to loans:
Individually evaluated for impairment				60	66
Collectively evaluated for impairment				500	484
Total ending allowance balance		550	847	560	550
Loans:
Individually evaluated for impairment				223	246
Collectively evaluated for impairment				30,558	32,804
Total Loans				30,781	33,050
Real Estate Loans Secured by Farmland [Member]
Allowance for loan losses [Roll Forward]
Beginning balance		179	166
Adjustment for the sale of majority interest in consolidated subsidiary			0
Charge-offs		0	0
Recoveries		0	0
Provision		11	13
Ending balance		190	179
Ending allowance balance attributable to loans:
Individually evaluated for impairment				0	0
Collectively evaluated for impairment				190	179
Total ending allowance balance		179	166	190	179
Loans:
Individually evaluated for impairment				7,903	7,903
Collectively evaluated for impairment				11,602	11,805
Total Loans				19,505	19,708
Secured by 1-4 family residential [Member]
Allowance for loan losses [Roll Forward]
Beginning balance		3,966	6,734
Adjustment for the sale of majority interest in consolidated subsidiary			(95)
Charge-offs		(12)	(1,380)
Recoveries		324	342
Provision		(156)	(1,635)
Ending balance		4,122	3,966
Ending allowance balance attributable to loans:
Individually evaluated for impairment				1,412	1,370
Collectively evaluated for impairment				2,710	2,596
Total ending allowance balance		3,966	6,734	4,122	3,966
Loans:
Individually evaluated for impairment				4,723	5,613
Collectively evaluated for impairment				267,475	259,603
Total Loans				272,198	265,216
Other real estate loans [Member]
Allowance for loan losses [Roll Forward]
Beginning balance		3,916	3,506
Adjustment for the sale of majority interest in consolidated subsidiary			0
Charge-offs		(9)	(747)
Recoveries		21	110
Provision		35	1,047
Ending balance		3,963	3,916
Ending allowance balance attributable to loans:
Individually evaluated for impairment				454	294
Collectively evaluated for impairment				3,509	3,622
Total ending allowance balance		3,916	3,506	3,963	3,916
Loans:
Individually evaluated for impairment				4,230	4,531
Collectively evaluated for impairment				261,662	250,705
Total Loans				265,892	255,236
Commercial [Member]
Allowance for loan losses [Roll Forward]
Beginning balance		2,354	1,890
Adjustment for the sale of majority interest in consolidated subsidiary			0
Charge-offs		(246)	(959)
Recoveries		8	104
Provision		(272)	1,319
Ending balance		1,844	2,354
Ending allowance balance attributable to loans:
Individually evaluated for impairment				43	292
Collectively evaluated for impairment				1,801	2,062
Total ending allowance balance		2,354	1,890	1,844	2,354
Loans:
Individually evaluated for impairment				795	846
Collectively evaluated for impairment				166,747	162,423
Total Loans				167,542	163,269
Consumer [Member]
Allowance for loan losses [Roll Forward]
Beginning balance		821	177
Adjustment for the sale of majority interest in consolidated subsidiary			0
Charge-offs		(40)	(36)
Recoveries		6	95
Provision		428	585
Ending balance		1,215	821
Ending allowance balance attributable to loans:
Individually evaluated for impairment				1,003	647
Collectively evaluated for impairment				212	174
Total ending allowance balance		$ 821	$ 177	1,215	821
Loans:
Individually evaluated for impairment				2,033	3,019
Collectively evaluated for impairment				15,139	15,348
Total Loans				$ 17,172	$ 18,367

[1] Includes net deferred loan costs and premiums of $3.1 million and $3.0 million, respectively.