Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019
Assets [Abstract]
Investment Securities Available-for-Sale	$ 568,536	$ 507,386	$ 492,930
Carrying Amount [Member]
Assets [Abstract]
Cash and Cash Equivalents	358,368	294,758	224,076
Investment Securities Available-for-Sale	568,536	507,386	492,930
Investment Securities Held-to-Maturity	69,913	60,229	60,354
Loans & Leases, Net	3,055,133	2,618,015	2,562,168
Accrued Interest Receivable	22,596	16,733	18,229
Liabilities [Abstract]
Deposits	3,814,777	3,278,019	3,139,413
Subordinated Debentures	10,310	10,310	10,310
Accrued Interest Payable	1,618	2,795	2,521
Estimated Fair Value [Member]
Assets [Abstract]
Cash and Cash Equivalents	358,368	294,758	224,076
Investment Securities Available-for-Sale	568,536	507,386	492,930
Investment Securities Held-to-Maturity	71,055	61,097	59,516
Loans & Leases, Net	3,065,624	2,584,805	2,537,599
Accrued Interest Receivable	22,596	16,733	18,229
Liabilities [Abstract]
Deposits	3,816,282	3,277,269	3,138,252
Subordinated Debentures	6,518	7,325	7,475
Accrued Interest Payable	1,618	2,795	2,521
Estimated Fair Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets [Abstract]
Cash and Cash Equivalents	358,368	294,758	224,076
Investment Securities Available-for-Sale	95,460	55,200	130,193
Investment Securities Held-to-Maturity	0	0	0
Loans & Leases, Net	0	0	0
Accrued Interest Receivable	0	0	0
Liabilities [Abstract]
Deposits	3,354,528	2,760,097	2,613,146
Subordinated Debentures	0	0	0
Accrued Interest Payable	0	0	0
Estimated Fair Value [Member] | Other Observable Inputs (Level 2) [Member]
Assets [Abstract]
Cash and Cash Equivalents	0	0	0
Investment Securities Available-for-Sale	473,076	452,186	359,611
Investment Securities Held-to-Maturity	28,244	31,253	32,183
Loans & Leases, Net	0	0	0
Accrued Interest Receivable	22,596	16,733	18,229
Liabilities [Abstract]
Deposits	461,754	517,172	525,106
Subordinated Debentures	6,518	7,325	7,475
Accrued Interest Payable	1,618	2,795	2,521
Estimated Fair Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets [Abstract]
Cash and Cash Equivalents	0	0	0
Investment Securities Available-for-Sale	0	0	3,126
Investment Securities Held-to-Maturity	42,811	29,844	27,333
Loans & Leases, Net	3,065,624	2,584,805	2,537,599
Accrued Interest Receivable	0	0	0
Liabilities [Abstract]
Deposits	0	0	0
Subordinated Debentures	0	0	0
Accrued Interest Payable	$ 0	$ 0	$ 0