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Loans (Loan Portfolio) (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Amount Outstanding	$ 4,500,691		$ 4,441,479
Net Deferred Loan (Fees) Costs	35,311		37,725
Total Loans	4,536,002		4,479,204
Allowance for credit losses-loans	(47,291)	$ (48,964)	(48,041)	$ (43,952)	$ (43,075)	$ (51,082)
Total loans, net	4,488,711		4,431,163
Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Amount Outstanding	725,691		664,846
Net Deferred Loan (Fees) Costs	527		475
Total Loans	726,218		665,321
Allowance for credit losses-loans	(8,996)	(7,621)	(8,665)	(12,246)	(12,991)	(13,102)
Commercial Mortgage [Member] | Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Amount Outstanding	538,722		584,296
Net Deferred Loan (Fees) Costs	(2,170)		(1,677)
Total Loans	536,552		582,619
Allowance for credit losses-loans	(4,514)	(5,312)	(6,824)	(3,710)	(3,593)	(3,710)
Commercial Mortgage [Member] | Multifamily [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Amount Outstanding	496,832		471,499
Net Deferred Loan (Fees) Costs	(609)		(545)
Total Loans	496,223		470,954
Allowance for credit losses-loans	(3,930)	(4,110)	(3,458)	(4,009)	(3,159)	(4,009)
Commercial Mortgage [Member] | Non-Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Amount Outstanding	874,304		859,079
Net Deferred Loan (Fees) Costs	(1,097)		(1,092)
Total Loans	873,207		857,987
Allowance for credit losses-loans	(8,868)	(9,709)	(7,330)	(6,080)	(5,546)	(6,074)
Commercial Mortgage [Member] | Owner Occupied [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Amount Outstanding	309,184		288,042
Net Deferred Loan (Fees) Costs	(13)		(6)
Total Loans	309,171		288,036
Allowance for credit losses-loans	(3,087)	(4,013)	(4,183)	(1,566)	(1,815)	(2,065)
Residential Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Amount Outstanding	637,342		639,466
Net Deferred Loan (Fees) Costs	9,863		10,740
Total Loans	647,205		650,206
Allowance for credit losses-loans	(4,638)	(4,862)	(3,596)	(4,211)	(4,630)	(5,286)
Residential Real Estate Lines [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Amount Outstanding	72,452		72,308
Net Deferred Loan (Fees) Costs	3,223		3,244
Total Loans	75,675		75,552
Allowance for credit losses-loans	(969)	(949)	(793)	(769)	(794)	(764)
Consumer Indirect [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Amount Outstanding	807,798		819,116
Net Deferred Loan (Fees) Costs	25,654		26,656
Total Loans	833,452		845,772
Allowance for credit losses-loans	(11,783)	(11,798)	(12,705)	(10,842)	(9,854)	(14,099)
Other Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Amount Outstanding	38,366		42,827
Net Deferred Loan (Fees) Costs	(67)		(70)
Total Loans	38,299		42,757
Allowance for credit losses-loans	$ (506)	$ (590)	$ (487)	$ (519)	$ (693)	$ (1,973)

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