Debt and FHLB Stock (Narrative) (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2025 USD ($) subsidiary $ / shares	Dec. 31, 2024 USD ($) $ / shares	Dec. 31, 2005 USD ($) $ / shares shares
Long-Term Debt And Federal Home Loan Bank [Line Items]
Advances from the Federal Home Loan Bank	$ 25,153	$ 69,773
Number of wholly owned subsidiaries | subsidiary	1
Common stock, par value (in dollars per share) | $ / shares	$ 0.01	$ 0.01
Federal Reserve Bank advances
Long-Term Debt And Federal Home Loan Bank [Line Items]
Line of credit, maximum borrowing capacity	$ 155,646	$ 215,572
Line of credit facility, maximum amount outstanding during period	0	0
Zions Bank
Long-Term Debt And Federal Home Loan Bank [Line Items]
Line of credit, maximum borrowing capacity	10,000
Line of credit facility, maximum amount outstanding during period	0	0
Pacific Community Bankers Bank
Long-Term Debt And Federal Home Loan Bank [Line Items]
Line of credit, maximum borrowing capacity	50,000
Line of credit facility, maximum amount outstanding during period	0	$ 0
Subordinated Debt
Long-Term Debt And Federal Home Loan Bank [Line Items]
Subordinated debt securities	$ 5,155
Interest rate, variable rate basis	at three-month Secured Overnight Financing Rate (“SOFR”)	at three-month Secured Overnight Financing Rate (“SOFR”)
Interest variable rate	2.00%	2.00%
Relative spread adjustment	0.26%	0.26%
Effective interest during period	6.14%	7.78%
Stated maturity date	May 23, 2035
Subordinated Debt | RSB Capital Trust I
Long-Term Debt And Federal Home Loan Bank [Line Items]
Trust term	30 years
Subordinated Debt | Private placement | RSB Capital Trust I
Long-Term Debt And Federal Home Loan Bank [Line Items]
Number of preferred securities issued			$ 5,000
Common stock issued | shares			155
Common stock, par value (in dollars per share) | $ / shares			$ 1
Federal Home Loan Bank of New York ("FHLBNY")
Long-Term Debt And Federal Home Loan Bank [Line Items]
Preapproved secured line of credit with the FHLB	$ 650,791	$ 627,265
Pledged assets	514,823	447,534
FHLB secured line of credit	362,311	306,410
Advances from the Federal Home Loan Bank	25,153
Impairment related to Federal Home Loan Bank	0	0
Federal Home Loan Bank of New York ("FHLBNY") | Maturity Overnight
Long-Term Debt And Federal Home Loan Bank [Line Items]
Advances from the Federal Home Loan Bank	$ 0	$ 0