Borrowings - Summary of Borrowings By Type (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Schedule of Borrowings [Line Items]
Balance at end of year	$ 18,680	$ 189,768
Balance at end of year	$ 150,098	$ 145,330
Federal Home Loan Bank Advances [Member]
Schedule of Borrowings [Line Items]
Weighted average interest rate	2.04%	1.92%
Maximum amount outstanding at month end during the year	$ 150,000	$ 125,031
Average amount outstanding during the year	$ 139,397	$ 120,983
Weighted average interest rate during the year	2.00%	1.80%
Balance at end of year	$ 140,000	$ 125,000
Securities Sold under Agreements to Repurchase [Member]
Schedule of Borrowings [Line Items]
Weighted average interest rate	2.07%	2.71%
Maximum amount outstanding at month end during the year	$ 20,308	$ 30,751
Average amount outstanding during the year	$ 16,969	$ 29,049
Weighted average interest rate during the year	2.61%	2.08%
Balance at end of year	$ 10,098	$ 20,330
Subordinated Debt [Member]
Schedule of Borrowings [Line Items]
Weighted average interest rate	5.32%	5.33%
Maximum amount outstanding at month end during the year	$ 94,818	$ 94,574
Average amount outstanding during the year	$ 94,695	$ 94,451
Weighted average interest rate during the year	5.33%	5.34%
Balance at end of year	$ 94,818	$ 94,574
Federal Home Loan Bank Advances [Member]
Schedule of Borrowings [Line Items]
Balance at end of year	$ 0	$ 108,300
Weighted average interest rate	0.00%	2.62%
Maximum amount outstanding at month end during the year	$ 190,740	$ 261,240
Average amount outstanding during the year	$ 23,485	$ 85,601
Weighted average interest rate during the year	2.57%	2.01%
Federal Funds Purchased [Member]
Schedule of Borrowings [Line Items]
Balance at end of year	$ 0	$ 60,000
Weighted average interest rate	0.00%	2.60%
Maximum amount outstanding at month end during the year	$ 8,500	$ 65,003
Average amount outstanding during the year	$ 15,217	$ 36,591
Weighted average interest rate during the year	2.63%	1.88%
Securities Sold under Agreements to Repurchase [Member]
Schedule of Borrowings [Line Items]
Balance at end of year	$ 18,680	$ 21,468
Weighted average interest rate	0.05%	0.05%
Maximum amount outstanding at month end during the year	$ 22,995	$ 28,323
Average amount outstanding during the year	$ 18,180	$ 22,120
Weighted average interest rate during the year	0.05%	0.05%