Fair Values - Fair Value by Balance Sheet Grouping (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Carrying Value
Cash and Cash Equivalents	$ 253,270	$ 70,221	$ 62,695	$ 84,239
Available-for-Sale at Fair Value	378,778	357,334	285,878
Securities Held-to-Maturity	233,517	245,065	262,541
Equity Securities	1,583	2,063	1,850
Deposits	3,068,773	2,616,054	2,503,753
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	47,599	51,099	51,149
Federal Home Loan Bank Overnight Advances	0	130,000	83,000
Federal Home Loan Bank Term Advances	50,000	30,000	30,000
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts	20,000	20,000	20,000
Fair Value
Available-for-Sale	378,778	357,334	285,878
Securities Held-to-Maturity	241,875	249,618	266,068
Equity Securities	1,583	2,063	1,850
Carrying Amount
Carrying Value
Cash and Cash Equivalents	253,270	70,221	62,695
Available-for-Sale at Fair Value	378,778	357,334	285,878
Securities Held-to-Maturity	233,517	245,065	262,541
Equity Securities	1,583	2,063	1,850
Federal Home Loan Bank and Federal Reserve Bank Stock	5,574	10,317	8,202
Net Loans	2,535,615	2,364,933	2,259,613
Accrued Interest Receivable	6,421	7,377	7,491
Derivatives, included in other assets	6,390	69
Deposits	3,068,773	2,616,054	2,503,753
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	47,599	51,099	51,149
Federal Home Loan Bank Overnight Advances		130,000	83,000
Federal Home Loan Bank Term Advances	50,000	30,000	30,000
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts	20,000	20,000	20,000
Accrued Interest Payable	918	1,436	1,187
Derivatives, included in other liabilities	6,390	69
Fair Value
Available-for-Sale	378,778	357,334	285,878
Equity Securities	1,583	2,063	1,850
Derivatives, included in other assets	6,390	69
Derivatives, included in other liabilities	6,390	69
Fair Value
Carrying Value
Available-for-Sale at Fair Value	378,778	357,334	285,878
Equity Securities	1,583	2,063	1,850
Derivatives, included in other assets	6,390	69
Derivatives, included in other liabilities	6,390	69
Fair Value
Cash and Cash Equivalents	253,270	70,221	62,695
Available-for-Sale	378,778	357,334	285,878
Securities Held-to-Maturity	241,875	249,618	266,068
Equity Securities	1,583	2,063	1,850
Federal Home Loan Bank and Federal Reserve Bank Stock, Fair Value	5,574	10,317	8,202
Net Loans, at Fair Value	2,529,544	2,332,797	2,218,244
Accrued Interest Receivable	6,421	7,377	7,491
Derivatives, included in other assets	6,390	69
Deposits	3,069,571	2,614,170	2,499,849
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	47,599	51,099	51,149
Federal Home Loan Bank Overnight Advances		130,000	83,000
Federal Home Loan Bank Term Advances	51,560	29,993	29,943
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts	20,000	20,000	20,000
Accrued Interest Payable	918	1,436	1,187
Derivatives, included in other liabilities	6,390	69
Quoted Prices In Active Markets for Indentical Assets (Level 1) | Fair Value
Carrying Value
Available-for-Sale at Fair Value	0	0	0
Equity Securities	0	0	0
Derivatives, included in other assets		0
Derivatives, included in other liabilities	0	0
Fair Value
Cash and Cash Equivalents	253,270	70,221	62,695
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, at Fair Value	0	0	0
Accrued Interest Receivable	0	0	0
Derivatives, included in other assets		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	0
Federal Home Loan Bank Term Advances	0	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
Significant Other Observable Inputs (Level 2) | Fair Value
Carrying Value
Available-for-Sale at Fair Value	378,778	357,334	285,878
Equity Securities	1,583	2,063	1,850
Derivatives, included in other assets	6,390	69
Derivatives, included in other liabilities	6,390	69
Fair Value
Cash and Cash Equivalents	0	0	0
Available-for-Sale	378,778	357,334	285,878
Securities Held-to-Maturity	241,875	249,618	266,068
Equity Securities	1,583	2,063	1,850
Federal Home Loan Bank and Federal Reserve Bank Stock, Fair Value	5,574	10,317	8,202
Net Loans, at Fair Value	0	0	0
Accrued Interest Receivable	6,421	7,377	7,491
Derivatives, included in other assets	6,390	69
Deposits	3,069,571	2,614,170	2,499,849
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	47,599	51,099	51,149
Federal Home Loan Bank Overnight Advances		130,000	83,000
Federal Home Loan Bank Term Advances	51,560	29,993	29,943
Junior Subordinated Obligations Issued to Unconsolidated Subsidiary Trusts	20,000	20,000	20,000
Accrued Interest Payable	918	1,436	1,187
Derivatives, included in other liabilities	6,390	69
Significant Unobservable Inputs (Level 3) | Fair Value
Carrying Value
Available-for-Sale at Fair Value	0	0	0
Equity Securities	0
Derivatives, included in other assets		0
Derivatives, included in other liabilities	0	0
Fair Value
Cash and Cash Equivalents	0	0	0
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, at Fair Value	2,529,544	2,332,797	2,218,244
Accrued Interest Receivable	0	0	0
Derivatives, included in other assets		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	0
Federal Home Loan Bank Term Advances	0	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