Fair Values - Fair Value by Balance Sheet Grouping (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2019
Carrying Value
Cash and Cash Equivalents	$ 478,228	$ 380,991	$ 253,270	$ 70,221
Securities Available-for-Sale	437,868	365,287	378,778
Securities Held-to-Maturity	204,490	218,405	233,517
Equity Securities	1,992	1,636	1,583
Net Loans	2,617,072	2,565,798	2,535,615
Deposits	3,438,033	3,234,726	3,068,773
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	3,092	17,486	47,599
Federal Home Loan Bank Term Advances	45,000	45,000	50,000
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts	20,000	20,000	20,000
Fair Value
Securities Available-for-Sale	437,868	365,287	378,778
Securities Held-to-Maturity	210,916	226,576	241,875
Equity Securities	1,992	1,636	1,583
Carrying Amount
Carrying Value
Cash and Cash Equivalents	478,228	380,991	253,270
Securities Available-for-Sale	437,868	365,287	378,778
Securities Held-to-Maturity	204,490	218,405	233,517
Equity Securities	1,992	1,636	1,583
Federal Home Loan Bank and Federal Reserve Bank Stock	5,380	5,349	5,574
Net Loans	2,617,072	2,565,798	2,535,615
Accrued Interest Receivable	7,250	7,495	6,421
Derivatives, included in other assets	2,600	5,080	6,390
Deposits	3,438,033	3,234,726	3,068,773
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	3,092	17,486	47,599
Federal Home Loan Bank Overnight Advances		45,000
Federal Home Loan Bank Term Advances	45,000		50,000
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts	20,000	20,000	20,000
Accrued Interest Payable	156	326	918
Derivatives, included in other liabilities	2,600	5,080	6,390
Fair Value
Securities Available-for-Sale	437,868	365,287	378,778
Equity Securities	1,992	1,636	1,583
Derivatives, included in other assets	2,600	5,080	6,390
Derivatives, included in other liabilities	2,600	5,080	6,390
Fair Value
Carrying Value
Securities Available-for-Sale	437,868	365,287	378,778
Equity Securities	1,992	1,636	1,583
Derivatives, included in other assets	2,600	5,080	6,390
Derivatives, included in other liabilities	2,600	5,080	6,390
Fair Value
Cash and Cash Equivalents	478,228	380,991	253,270
Securities Available-for-Sale	437,868	365,287	378,778
Securities Held-to-Maturity	210,916	226,576	241,875
Equity Securities	1,992	1,636	1,583
Federal Home Loan Bank and Federal Reserve Bank Stock, Fair Value	5,380	5,349	5,574
Net Loans	2,600,612	2,558,903	2,529,544
Accrued Interest Receivable	7,250	7,495	6,421
Derivatives, included in other assets	2,600	5,080	6,390
Deposits	3,436,969	3,234,387	3,069,571
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	3,092	17,486	47,599
Federal Home Loan Bank Overnight Advances		46,474
Federal Home Loan Bank Term Advances	46,019		51,560
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts	20,000	20,000	20,000
Accrued Interest Payable	156	326	918
Derivatives, included in other liabilities	2,600	5,080	6,390
Quoted Prices In Active Markets for Indentical Assets (Level 1) | Fair Value
Carrying Value
Securities Available-for-Sale	0	0	0
Equity Securities	0	0	0
Derivatives, included in other assets		0	0
Derivatives, included in other liabilities	0	0	0
Fair Value
Cash and Cash Equivalents	478,228	380,991	253,270
Securities Available-for-Sale	0	0	0
Securities Held-to-Maturity	0	0	0
Equity Securities	0	0	0
Federal Home Loan Bank and Federal Reserve Bank Stock, Fair Value	0	0	0
Net Loans	0	0	0
Accrued Interest Receivable	0	0	0
Derivatives, included in other assets		0	0
Deposits	0	0	0
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	0	0	0
Federal Home Loan Bank Overnight Advances		0
Federal Home Loan Bank Term Advances	0		0
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts	0	0	0
Accrued Interest Payable	0	0	0
Derivatives, included in other liabilities	0	0	0
Significant Other Observable Inputs (Level 2) | Fair Value
Carrying Value
Securities Available-for-Sale	437,868	365,287	378,778
Equity Securities	1,992	1,636	1,583
Derivatives, included in other assets	2,600	5,080	6,390
Derivatives, included in other liabilities	2,600	5,080	6,390
Fair Value
Cash and Cash Equivalents	0	0	0
Securities Available-for-Sale	437,868	365,287	378,778
Securities Held-to-Maturity	210,916	226,576	241,875
Equity Securities	1,992	1,636	1,583
Federal Home Loan Bank and Federal Reserve Bank Stock, Fair Value	5,380	5,349	5,574
Net Loans	0	0	0
Accrued Interest Receivable	7,250	7,495	6,421
Derivatives, included in other assets	2,600	5,080	6,390
Deposits	3,436,969	3,234,387	3,069,571
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	3,092	17,486	47,599
Federal Home Loan Bank Overnight Advances		46,474
Federal Home Loan Bank Term Advances	46,019		51,560
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts	20,000	20,000	20,000
Accrued Interest Payable	156	326	918
Derivatives, included in other liabilities	2,600	5,080	6,390
Significant Unobservable Inputs (Level 3) | Fair Value
Carrying Value
Securities Available-for-Sale	0	0	0
Equity Securities	0
Derivatives, included in other assets		0	0
Derivatives, included in other liabilities	0	0	0
Fair Value
Cash and Cash Equivalents	0	0	0
Securities Available-for-Sale	0	0	0
Securities Held-to-Maturity	0	0	0
Equity Securities	0
Federal Home Loan Bank and Federal Reserve Bank Stock, Fair Value	0	0	0
Net Loans	2,600,612	2,558,903	2,529,544
Accrued Interest Receivable	0	0	0
Derivatives, included in other assets		0	0
Deposits	0	0	0
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	0	0	0
Federal Home Loan Bank Overnight Advances		0
Federal Home Loan Bank Term Advances	0		0
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts	0	0	0
Accrued Interest Payable	0	0	0
Derivatives, included in other liabilities	$ 0	$ 0	$ 0