Loans (Aging Of The Recorded Investment In Loans) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Loans	$ 3,333,203	$ 3,105,036
Nonaccrual - With No Allowance for Credit Loss		1,235
Total Past Due Loans & Nonaccrual Loans	526	1,695
Current	3,332,677	3,103,341
Total Loans	3,333,203	3,105,036
Commercial And Industrial [Member]
Financing Receivable, Past Due [Line Items]
Loans	112,873	90,386
Total Past Due Loans & Nonaccrual Loans	333	128
Current	112,540	90,258
Total Loans	112,873	90,386
SBA Paycheck Protection Program [Member]
Financing Receivable, Past Due [Line Items]
Loans	193	30,534
Total Past Due Loans & Nonaccrual Loans	193	259
Current		30,275
Total Loans	193	30,534
Commercial Mortgages [Member]
Financing Receivable, Past Due [Line Items]
Total Loans	1,942,214	1,736,612
Commercial Mortgages [Member] | Multifamily Loan [Member]
Financing Receivable, Past Due [Line Items]
Loans	927,717	864,207
Current	927,717	864,207
Total Loans	927,717	864,207
Commercial Mortgages [Member] | Other Loan [Member]
Financing Receivable, Past Due [Line Items]
Loans	793,592	700,872
Current	793,592	700,872
Total Loans	793,592	700,872
Commercial Mortgages [Member] | Owner-occupied Loan [Member]
Financing Receivable, Past Due [Line Items]
Loans	220,905	171,533
Current	220,905	171,533
Total Loans	220,905	171,533
Residential Mortgages [Member]
Financing Receivable, Past Due [Line Items]
Loans	1,276,281
Residential Mortgages [Member] | Closed-end [Member]
Financing Receivable, Past Due [Line Items]
Loans	1,233,005	1,202,374
Nonaccrual - With No Allowance for Credit Loss		1,235
Total Past Due Loans & Nonaccrual Loans		1,235
Current	1,233,005	1,201,139
Total Loans	1,233,005	1,202,374
Residential Mortgages [Member] | Revolving Home Equity [Member]
Financing Receivable, Past Due [Line Items]
Loans	43,276	44,139
Current	43,276	44,139
Total Loans	43,276	44,139
Consumer And Other [Member]
Financing Receivable, Past Due [Line Items]
Loans	1,642	991
Total Past Due Loans & Nonaccrual Loans		73
Current	1,642	918
Total Loans	1,642	991
30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Loans	526	460
30 to 59 Days Past Due [Member] | Commercial And Industrial [Member]
Financing Receivable, Past Due [Line Items]
Loans	333	128
30 to 59 Days Past Due [Member] | SBA Paycheck Protection Program [Member]
Financing Receivable, Past Due [Line Items]
Loans	$ 193	259
30 to 59 Days Past Due [Member] | Consumer And Other [Member]
Financing Receivable, Past Due [Line Items]
Loans		$ 73