Borrowings - Summary of Borrowings By Type (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Schedule of Borrowings [Line Items]
Balance at End of Period	$ 73,185	$ 189,768
Balance at End of Period	145,263	145,330
Federal Home Loan Bank Advances [Member]
Schedule of Borrowings [Line Items]
Balance at End of Period	$ 125,000	$ 125,000
Weighted Average Interest Rate	1.92%	1.92%
Securities Sold under Agreements to Repurchase [Member]
Schedule of Borrowings [Line Items]
Balance at End of Period	$ 20,263	$ 20,330
Weighted Average Interest Rate	2.83%	2.71%
Subordinated Debt [Member]
Schedule of Borrowings [Line Items]
Balance at End of Period	$ 94,635	$ 94,574
Weighted Average Interest Rate	5.33%	5.33%
Federal Home Loan Bank Advances [Member]
Schedule of Borrowings [Line Items]
Balance at End of Period	$ 0	$ 108,300
Weighted Average Interest Rate	0.00%	2.62%
Federal Funds Purchased [Member]
Schedule of Borrowings [Line Items]
Balance at End of Period	$ 55,000	$ 60,000
Weighted Average Interest Rate	2.55%	2.60%
Securities Sold under Agreements to Repurchase [Member]
Schedule of Borrowings [Line Items]
Balance at End of Period	$ 18,185	$ 21,468
Weighted Average Interest Rate	0.05%	0.05%