Loans, Net - Recorded investment in past due loans by class of loans (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Past due loans by class of loans [Abstract]
Total Past Due	$ 8,448	$ 3,327
Current	837,442	802,354
Total Loans	845,890	805,681	$ 780,867
Construction [Member]
Past due loans by class of loans [Abstract]
Total Past Due	0	69
Current	32,519	39,604
Total Loans	32,519	39,673
Secured by farmland [Member]
Past due loans by class of loans [Abstract]
Total Past Due	0	0
Current	16,832	19,062
Total Loans	16,832	19,062
Secured by 1-4 family residential [Member]
Past due loans by class of loans [Abstract]
Total Past Due	3,606	1,376
Current	328,802	278,720
Total Loans	332,408	280,096	273,176
Other real estate loans [Member]
Past due loans by class of loans [Abstract]
Total Past Due	1,552	573
Current	249,226	257,462
Total Loans	250,778	258,035	258,012
Commercial loans [Member]
Past due loans by class of loans [Abstract]
Total Past Due	1,413	1,288
Current	192,413	189,194
Total Loans	193,826	190,482	179,907
Consumer loans [Member]
Past due loans by class of loans [Abstract]
Total Past Due	1,877	21
Current	17,650	18,312
Total Loans	19,527	18,333	$ 17,000
Financing Receivables, 30 to 59 Days Past Due [Member]
Past due loans by class of loans [Abstract]
Total Past Due	1,170	1,899
Financing Receivables, 30 to 59 Days Past Due [Member] | Construction [Member]
Past due loans by class of loans [Abstract]
Total Past Due	0	69
Financing Receivables, 30 to 59 Days Past Due [Member] | Secured by farmland [Member]
Past due loans by class of loans [Abstract]
Total Past Due	0	0
Financing Receivables, 30 to 59 Days Past Due [Member] | Secured by 1-4 family residential [Member]
Past due loans by class of loans [Abstract]
Total Past Due	287	259
Financing Receivables, 30 to 59 Days Past Due [Member] | Other real estate loans [Member]
Past due loans by class of loans [Abstract]
Total Past Due	315	325
Financing Receivables, 30 to 59 Days Past Due [Member] | Commercial loans [Member]
Past due loans by class of loans [Abstract]
Total Past Due	568	1,242
Financing Receivables, 30 to 59 Days Past Due [Member] | Consumer loans [Member]
Past due loans by class of loans [Abstract]
Total Past Due	0	4
Financing Receivables, 60 to 89 Days Past Due [Member]
Past due loans by class of loans [Abstract]
Total Past Due	1,445	32
Financing Receivables, 60 to 89 Days Past Due [Member] | Construction [Member]
Past due loans by class of loans [Abstract]
Total Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Secured by farmland [Member]
Past due loans by class of loans [Abstract]
Total Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Secured by 1-4 family residential [Member]
Past due loans by class of loans [Abstract]
Total Past Due	0	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Other real estate loans [Member]
Past due loans by class of loans [Abstract]
Total Past Due	1,089	0
Financing Receivables, 60 to 89 Days Past Due [Member] | Commercial loans [Member]
Past due loans by class of loans [Abstract]
Total Past Due	350	15
Financing Receivables, 60 to 89 Days Past Due [Member] | Consumer loans [Member]
Past due loans by class of loans [Abstract]
Total Past Due	6	17
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due loans by class of loans [Abstract]
Total Past Due	5,833	1,396
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Construction [Member]
Past due loans by class of loans [Abstract]
Total Past Due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Secured by farmland [Member]
Past due loans by class of loans [Abstract]
Total Past Due	0	0
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Secured by 1-4 family residential [Member]
Past due loans by class of loans [Abstract]
Total Past Due	3,319	1,117
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Other real estate loans [Member]
Past due loans by class of loans [Abstract]
Total Past Due	148	248
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Commercial loans [Member]
Past due loans by class of loans [Abstract]
Total Past Due	495	31
Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Consumer loans [Member]
Past due loans by class of loans [Abstract]
Total Past Due	1,871	$ 0
Nonperforming Financial Instruments [Member]
Past due loans by class of loans [Abstract]
Current	$ 4,300