Fair Value Accounting (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Securities available for sale
US government agencies	$ 6,399	$ 14,599
SBA securities	1,452	6,277
State and political subdivisions	21,688	22,259
Mortgage-backed securities	38,335	46,804
Interest rate lock commitments	619
Total assets measured at fair value on a recurring basis	68,493	89,939
Liabilities
MBS forward sales commitments	112
Total liabilities measured at fair value on a recurring basis	112
Fair Value, Level 1 [Member]
Securities available for sale
US government agencies
SBA securities
State and political subdivisions
Mortgage-backed securities
Interest rate lock commitments
Total assets measured at fair value on a recurring basis
Liabilities
MBS forward sales commitments
Total liabilities measured at fair value on a recurring basis
Fair Value, Level 2 [Member]
Securities available for sale
US government agencies	6,399	14,599
SBA securities	1,452	6,277
State and political subdivisions	21,688	22,259
Mortgage-backed securities	38,335	46,804
Interest rate lock commitments	619
Total assets measured at fair value on a recurring basis	68,493	89,939
Liabilities
MBS forward sales commitments	112
Total liabilities measured at fair value on a recurring basis	112
Fair Value, Level 3 [Member]
Securities available for sale
US government agencies
SBA securities
State and political subdivisions
Mortgage-backed securities
Interest rate lock commitments
Total assets measured at fair value on a recurring basis
Liabilities
MBS forward sales commitments
Total liabilities measured at fair value on a recurring basis