Borrowings - Schedule of Maturities of Long-term FHLB Advances (Details) $ in Thousands	Dec. 31, 2017 USD ($)
Federal Home Loan Bank, Advances, Fiscal Year Maturity [Abstract]
2018	$ 10,036
2019	10,000
2020	40,000
2021	55,000
2022	10,000
Thereafter	0
Total Advances	$ 125,036
Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate of Amounts Due [Abstract]
2018 Weighted average interest rate	0.69%
2019 Weighted average interest rate	1.35%
2020 Weighted average interest rate	1.70%
2021 Weighted average interest rate	1.94%
2022 Weighted average interest rate	2.09%
Thereafter Weighted average interest rate	0.00%
Weighted average interest rate	1.73%