Segment Reporting (Details) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) Segment	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Segment Reporting [Abstract]
Number of operating segments | Segment			3
Description of operating segments			The Company's reportable segments are strategic business units that offer different products and services. They are managed separately because each segment appeals to different markets and, accordingly, requires different technologies and marketing strategies.
Revenues
Interest and dividend income	$ 7,436	$ 7,609	$ 22,236	$ 22,663
Income from fiduciary activities	858	846	2,636	2,740
Other income	2,469	2,377	7,642	7,119
Total operating income	10,763	10,832	32,514	32,522
Expenses
Interest expense	633	915	1,934	2,726
Provision for loan losses	(100)	(50)	1,300	250	$ 1,025
Salaries and employee benefits	5,063	5,510	15,107	15,616
Other expenses	3,626	3,641	11,158	10,316
Total operating expenses	9,222	10,016	29,499	28,908
Income before income taxes	1,541	816	3,015	3,614
Income tax expense (benefit)	212	(24)	113	290
Net income	1,329	840	2,902	3,324
Property, Plant and Equipment, Additions	234	156	710	1,204
Total assets	905,756	878,952	905,756	878,952	$ 896,787
Bank [Member]
Revenues
Interest and dividend income	7,420	7,596	22,191	22,624
Income from fiduciary activities	0	0	0	0
Other income	2,277	2,125	6,954	6,387
Total operating income	9,697	9,721	29,145	29,011
Expenses
Interest expense	633	915	1,934	2,726
Provision for loan losses	(100)	(50)	1,300	250
Salaries and employee benefits	4,296	4,680	12,782	13,263
Other expenses	3,114	3,328	9,913	9,526
Total operating expenses	7,943	8,873	25,929	25,765
Income before income taxes	1,754	848	3,216	3,246
Income tax expense (benefit)	284	(13)	181	165
Net income	1,470	861	3,035	3,081
Property, Plant and Equipment, Additions	234	154	706	1,183
Total assets	900,160	873,986	900,160	873,986
Trust [Member]
Revenues
Interest and dividend income	16	13	45	39
Income from fiduciary activities	858	846	2,636	2,740
Other income	207	267	734	778
Total operating income	1,081	1,126	3,415	3,557
Expenses
Interest expense	0	0	0	0
Provision for loan losses	0	0	0	0
Salaries and employee benefits	665	716	2,022	2,014
Other expenses	262	279	774	771
Total operating expenses	927	995	2,796	2,785
Income before income taxes	154	131	619	772
Income tax expense (benefit)	53	45	211	263
Net income	101	86	408	509
Property, Plant and Equipment, Additions	0	2	4	21
Total assets	5,814	5,805	5,814	5,805
Unconsolidated Parent [Member]
Revenues
Interest and dividend income	1,572	947	3,443	3,590
Income from fiduciary activities	0	0	0	0
Other income	50	50	150	150
Total operating income	1,622	997	3,593	3,740
Expenses
Interest expense	0	0	0	0
Provision for loan losses	0	0	0	0
Salaries and employee benefits	102	114	303	339
Other expenses	315	99	667	215
Total operating expenses	417	213	970	554
Income before income taxes	1,205	784	2,623	3,186
Income tax expense (benefit)	(125)	(56)	(279)	(138)
Net income	1,330	840	2,902	3,324
Property, Plant and Equipment, Additions	0	0	0	0
Total assets	96,467	90,866	96,467	90,866
Eliminations [Member]
Revenues
Interest and dividend income	(1,572)	(947)	(3,443)	(3,590)
Income from fiduciary activities	0	0	0	0
Other income	(65)	(65)	(196)	(196)
Total operating income	(1,637)	(1,012)	(3,639)	(3,786)
Expenses
Interest expense	0	0	0	0
Provision for loan losses	0	0	0	0
Salaries and employee benefits	0	0	0	0
Other expenses	(65)	(65)	(196)	(196)
Total operating expenses	(65)	(65)	(196)	(196)
Income before income taxes	(1,572)	(947)	(3,443)	(3,590)
Income tax expense (benefit)	0	0	0	0
Net income	(1,572)	(947)	(3,443)	(3,590)
Property, Plant and Equipment, Additions	0	0	0	0
Total assets	$ (96,685)	$ (91,705)	$ (96,685)	$ (91,705)