Derivatives - Schedule of Offsetting Asset and Liability Derivatives (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Offsetting Liabilities [Line Items]
Gross amounts of recognized assets and liabilities	$ 149	$ 216
Offsetting Assets [Line Items]
Gross amounts of recognized assets and liabilities	1,208	1,639
Net amounts of assets and liabilities presented in the Statement of Financial Position	1,137	1,514
Commercial interest rate swaps
Offsetting Liabilities [Line Items]
Gross amounts of recognized assets and liabilities	71	125
Gross amounts offset in the Statement of Financial Position	0	0
Net amounts of assets and liabilities presented in the Statement of Financial Position	71	125
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	71	125
Net Amount	0	0
Offsetting Assets [Line Items]
Gross amounts of recognized assets and liabilities	71	125
Gross amounts offset in the Statement of Financial Position	0	0
Net amounts of assets and liabilities presented in the Statement of Financial Position	71	125
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	71	125
Retail interest rate contracts
Offsetting Liabilities [Line Items]
Gross amounts of recognized assets and liabilities	78	91
Gross amounts offset in the Statement of Financial Position	0	0
Net amounts of assets and liabilities presented in the Statement of Financial Position	78	91
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	$ 78	$ 91