Derivatives - Schedule of Offsetting Asset Derivatives (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Offsetting Assets [Line Items]
Net amounts of assets and liabilities presented in the Statement of Financial Position	$ 873	$ 1,137
Not Designated as Hedging Instrument
Offsetting Assets [Line Items]
Gross amounts of recognized assets and liabilities	950	1,208
Interest rate swaps
Offsetting Assets [Line Items]
Gross amounts of recognized assets and liabilities	261	71
Interest rate swaps | Not Designated as Hedging Instrument
Offsetting Assets [Line Items]
Gross amounts of recognized assets and liabilities	77	71
Gross amounts offset in the Statement of Financial Position	0	0
Net amounts of assets and liabilities presented in the Statement of Financial Position	77	71
Gross amounts not offset in the Statement of Financial Position, Financial Instruments	0	0
Gross amounts not offset in the Statement of Financial Position, Collateral Posted	0	0
Net Amount	$ 77	$ 71