Borrowings and Borrowing Capacity - Summary of FHLB Advances and Weighted Average Interest Rates by Contractual Maturity (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Debt Disclosure [Abstract]
2017, Balance Outstanding, Fixed Rate	$ 75,000
Total Balance Outstanding, Fixed Rate	$ 75,000
2017, Fixed Weighted Average Interest Rate	0.66%
Total Fixed Weighted Average Interest Rate	0.66%
2017, Balance Outstanding, Variable Rate	$ 110,000
2018, Balance Outstanding, Variable Rate	45,000
Total Balance Outstanding, Variable Rate	$ 155,000
2017, Variable Weighted Average Interest Rate	0.55%
2018, Variable Weighted Average Interest Rate	0.49%
Total Variable Weighted Average Interest Rate	0.53%