Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Available for sale securities:
Available for sale securities, Total Fair Value	$ 270,110	$ 260,650
Collateralized mortgage obligations- residential [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	95,192	93,876
Fair Value, Inputs, Level 1 [Member] | Collateralized mortgage obligations- residential [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	0	0
Fair Value, Inputs, Level 2 [Member] | Collateralized mortgage obligations- residential [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	95,192	93,876
Fair Value, Inputs, Level 3 [Member] | Collateralized mortgage obligations- residential [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	0	0
Obligations of U.S. government corporations and agencies [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	2,501	508
Obligations of U.S. government corporations and agencies [Member] | Fair Value, Inputs, Level 1 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	0	0
Obligations of U.S. government corporations and agencies [Member] | Fair Value, Inputs, Level 2 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	2,501	508
Obligations of U.S. government corporations and agencies [Member] | Fair Value, Inputs, Level 3 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	0	0
Mortgage-backed - residential [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	62,418	59,269
Mortgage-backed - residential [Member] | Fair Value, Inputs, Level 1 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	0	0
Mortgage-backed - residential [Member] | Fair Value, Inputs, Level 2 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	62,418	59,269
Mortgage-backed - residential [Member] | Fair Value, Inputs, Level 3 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	0	0
REMICs [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	1,020	1,065
REMICs [Member] | Fair Value, Inputs, Level 1 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	0	0
REMICs [Member] | Fair Value, Inputs, Level 2 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	1,020	1,065
REMICs [Member] | Fair Value, Inputs, Level 3 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	0	0
Preferred Stock [Member]
Available for sale securities:
Available for sale securities, Total Fair Value		1
Preferred Stock [Member] | Fair Value, Inputs, Level 1 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value		1
Preferred Stock [Member] | Fair Value, Inputs, Level 2 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value		0
Preferred Stock [Member] | Fair Value, Inputs, Level 3 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value		0
Corporate bonds [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	13,042	13,103
Corporate bonds [Member] | Fair Value, Inputs, Level 1 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	0	0
Corporate bonds [Member] | Fair Value, Inputs, Level 2 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	13,042	13,103
Corporate bonds [Member] | Fair Value, Inputs, Level 3 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	0	0
Obligations of state and political subdivisions [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	95,937	92,828
Obligations of state and political subdivisions [Member] | Fair Value, Inputs, Level 1 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	0	0
Obligations of state and political subdivisions [Member] | Fair Value, Inputs, Level 2 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	95,937	92,828
Obligations of state and political subdivisions [Member] | Fair Value, Inputs, Level 3 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	0
Mortgage banking derivative - asset [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	652	609
Mortgage banking derivative - asset [Member] | Fair Value, Inputs, Level 1 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	0	0
Mortgage banking derivative - asset [Member] | Fair Value, Inputs, Level 2 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	652	609
Mortgage banking derivative - asset [Member] | Fair Value, Inputs, Level 3 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	0	0
Mortgage banking derivative -liability [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	12	11
Mortgage banking derivative -liability [Member] | Fair Value, Inputs, Level 1 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	0	0
Mortgage banking derivative -liability [Member] | Fair Value, Inputs, Level 2 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	12	11
Mortgage banking derivative -liability [Member] | Fair Value, Inputs, Level 3 [Member]
Available for sale securities:
Available for sale securities, Total Fair Value	$ 0	$ 0