Borrowings - Summary of Borrowings By Type (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Schedule of Borrowings [Line Items]
Balance at end of year	$ 17,906	$ 18,680
Federal Home Loan Bank Advances [Member]
Schedule of Borrowings [Line Items]
Balance at end of year	$ 110,000	$ 140,000
Weighted average interest rate	1.42%	2.04%
Maximum amount outstanding at month end during the year	$ 200,000	$ 150,000
Average amount outstanding during the year	$ 181,722	$ 139,397
Weighted average interest rate during the year	1.54%	2.00%
Securities Sold under Agreements to Repurchase [Member]
Schedule of Borrowings [Line Items]
Balance at end of year		$ 10,098
Weighted average interest rate		2.07%
Maximum amount outstanding at month end during the year		$ 20,308
Average amount outstanding during the year		$ 16,969
Weighted average interest rate during the year		2.61%
Subordinated Debt [Member]
Schedule of Borrowings [Line Items]
Balance at end of year	$ 183,515	$ 94,818
Weighted average interest rate	4.96%	5.32%
Maximum amount outstanding at month end during the year	$ 193,481	$ 94,818
Average amount outstanding during the year	$ 134,949	$ 94,695
Weighted average interest rate during the year	5.01%	5.33%
Federal Home Loan Bank Advances [Member]
Schedule of Borrowings [Line Items]
Balance at end of year	$ 0	$ 0
Weighted average interest rate	0.00%	0.00%
Maximum amount outstanding at month end during the year	$ 0	$ 190,740
Average amount outstanding during the year	$ 5,048	$ 23,485
Weighted average interest rate during the year	1.68%	2.57%
Federal Funds Purchased [Member]
Schedule of Borrowings [Line Items]
Balance at end of year	$ 0	$ 0
Weighted average interest rate	0.00%	0.00%
Maximum amount outstanding at month end during the year	$ 40,000	$ 8,500
Average amount outstanding during the year	$ 1,388	$ 15,217
Weighted average interest rate during the year	1.64%	2.63%
Securities Sold under Agreements to Repurchase [Member]
Schedule of Borrowings [Line Items]
Balance at end of year	$ 17,906	$ 18,680
Weighted average interest rate	0.05%	0.05%
Maximum amount outstanding at month end during the year	$ 39,615	$ 22,995
Average amount outstanding during the year	$ 20,747	$ 18,180
Weighted average interest rate during the year	0.05%	0.05%
Short-term Debt
Schedule of Borrowings [Line Items]
Balance at end of year	$ 0
Weighted average interest rate	0.00%
Maximum amount outstanding at month end during the year	$ 192,936
Average amount outstanding during the year	$ 59,475
Weighted average interest rate during the year	0.35%