Long-Term Debt and FHLB Stock (Narrative) (Details) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Apr. 30, 2020 USD ($)	Dec. 31, 2021 USD ($) subsidiary $ / shares	Dec. 31, 2020 USD ($) $ / shares	Dec. 31, 2005 USD ($) $ / shares shares	Oct. 01, 2021 USD ($)
Long-Term Debt And Federal Home Loan Bank [Line Items]
Advances from Federal Home Loan Banks		$ 18,041	$ 50,674
Number Of Wholly Owned Subsidiaries | subsidiary		1
Common stock, par value (in dollars per share) | $ / shares		$ 0.01	$ 0.01
Funding received		$ (15,865)	$ (4,302)
Atlantic Community Bankers Bank
Long-Term Debt And Federal Home Loan Bank [Line Items]
Line of credit, maximum borrowing capacity		5,000
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
Paycheck Protection Program
Long-Term Debt And Federal Home Loan Bank [Line Items]
Interest rate	0.35%
Percentage of Principal Funding	100.00%
Funding received	$ 70,100
Subordinated Debt.
Long-Term Debt And Federal Home Loan Bank [Line Items]
Interest rate, variable rate basis		3-month LIBOR
Effective interest during period		2.16%	2.21%
Subordinated debt securities		$ 5,155
Stated maturity date		May 23, 2035
Subordinated Debt. | LIBOR
Long-Term Debt And Federal Home Loan Bank [Line Items]
Interest LIBOR rate		2.00%
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]
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available		$ 640,500	$ 564,330
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged		170,385	175,011
Advances from Federal Home Loan Banks		18,041
Impairment Related To Federal Home Loan Stock		0	0
Federal Home Loan Bank of New York ("FHLBNY") | Maturity Overnight [Member]
Long-Term Debt And Federal Home Loan Bank [Line Items]
Advances from Federal Home Loan Banks		$ 0	$ 0