Regulatory Matters (Actual and Required Capital Ratios) (Details) $ in Thousands	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Parent Company [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage, Actual Amount	$ 407,061	$ 381,473
Tier 1 leverage, Actual Ratio	8.25	9.00
Tier 1 leverage, For Capital Adequacy Purposes, Amount	$ 197,344	$ 169,504
Tier 1 leverage, For Capital Adequacy Purposes, Ratio	4.00	4.00
Tier 1 leverage, Well Capitalized, Amount	$ 246,680	$ 211,880
Tier 1 leverage, Well Capitalized, Ratio	5.00	5.00
CET1 capital, Actual Amount	$ 389,733	$ 364,145
CET1 capital, Actual Ratio	10.18	10.31
CET1 capital, For Capital Adequacy Purposes, Amount	$ 268,010	$ 247,330
CET1 capital, For Capital Adequacy Purposes, Ratio	7.00	7.00
CET1 capital, Well Capitalized, Amount	$ 248,866	$ 229,663
CET1 capital, Well Capitalized, Ratio	6.50	6.50
Tier 1 capital, Actual Amount	$ 407,061	$ 381,473
Tier 1 capital, Actual Ratio	10.63	10.80
Tier 1 capital, For Capital Adequacy Purposes, Amount	$ 325,441	$ 300,329
Tier 1 capital, For Capital Adequacy Purposes, Ratio	8.50	8.50
Tier 1 capital, Well Capitalized, Amount	$ 306,297	$ 282,663
Tier 1 capital, Well Capitalized, Ratio	8.00	8.00
Total risk-based capital, Actual Amount	$ 521,193	$ 451,228
Total risk-based capital, Actual Ratio	13.61	12.77
Total risk-based capital, For Capital Adequacy Purposes, Amount	$ 402,015	$ 370,995
Total risk-based capital, For Capital Adequacy Purposes, Ratio	10.50	10.50
Total risk-based capital, Well Capitalized, Amount	$ 382,871	$ 353,328
Total risk-based capital, Well Capitalized, Ratio	10.00	10.00
Bank [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage, Actual Amount	$ 441,929	$ 409,031
Tier 1 leverage, Actual Ratio	8.97	9.67
Tier 1 leverage, For Capital Adequacy Purposes, Amount	$ 197,064	$ 169,189
Tier 1 leverage, For Capital Adequacy Purposes, Ratio	4.00	4.00
Tier 1 leverage, Well Capitalized, Amount	$ 246,330	$ 211,486
Tier 1 leverage, Well Capitalized, Ratio	5.00	5.00
CET1 capital, Actual Amount	$ 441,929	$ 409,031
CET1 capital, Actual Ratio	11.57	11.61
CET1 capital, For Capital Adequacy Purposes, Amount	$ 267,387	$ 246,674
CET1 capital, For Capital Adequacy Purposes, Ratio	7.00	7.00
CET1 capital, Well Capitalized, Amount	$ 248,288	$ 229,055
CET1 capital, Well Capitalized, Ratio	6.50	6.50
Tier 1 capital, Actual Amount	$ 441,929	$ 409,031
Tier 1 capital, Actual Ratio	11.57	11.61
Tier 1 capital, For Capital Adequacy Purposes, Amount	$ 324,684	$ 299,533
Tier 1 capital, For Capital Adequacy Purposes, Ratio	8.50	8.50
Tier 1 capital, Well Capitalized, Amount	$ 305,585	$ 281,914
Tier 1 capital, Well Capitalized, Ratio	8.00	8.00
Total risk-based capital, Actual Amount	$ 482,439	$ 439,514
Total risk-based capital, Actual Ratio	12.63	12.47
Total risk-based capital, For Capital Adequacy Purposes, Amount	$ 401,080	$ 370,011
Total risk-based capital, For Capital Adequacy Purposes, Ratio	10.50	10.50
Total risk-based capital, Well Capitalized, Amount	$ 381,981	$ 352,392
Total risk-based capital, Well Capitalized, Ratio	10.00	10.00