Debt and FHLB Stock (Schedule of outstanding principal amounts and related terms of FHLBNY borrowings) (Details) - Federal Home Loan Bank of New York ("FHLBNY") $ in Thousands	Dec. 31, 2023 USD ($)
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Principal amount	$ 128,064
Rate	5.06%
Due in one year	$ 80,000
Long term	48,064
Fixed short-term on January 8, 2024
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Principal amount	$ 10,000
Rate	5.64%
Due in one year	$ 10,000
Fixed short-term on February 6, 2024
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Principal amount	$ 10,000
Rate	5.68%
Due in one year	$ 10,000
Fixed medium-term on March 21, 2024
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Principal amount	$ 20,000
Rate	5.18%
Due in one year	$ 20,000
Fixed short-term on April 23, 2024
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Principal amount	$ 10,000
Rate	5.70%
Due in one year	$ 10,000
Fixed short-term on May 17, 2024
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Principal amount	$ 10,000
Rate	5.59%
Due in one year	$ 10,000
Fixed short-term on June 17, 2024
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Principal amount	$ 10,000
Rate	5.60%
Due in one year	$ 10,000
Fixed short-term on July 17, 2024
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Principal amount	$ 10,000
Rate	5.59%
Due in one year	$ 10,000
Fixed medium-term on March 20, 2025
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Principal amount	$ 20,000
Rate	4.47%
Long term	$ 20,000
Fixed medium-term on October 31, 2025
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Principal amount	$ 722
Rate	4.87%
Long term	$ 722
Fixed medium-term on November 3, 2025
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Principal amount	$ 5,000
Rate	4.87%
Long term	$ 5,000
Fixed medium-term on December 5, 2025
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Principal amount	$ 728
Rate	4.34%
Long term	$ 728
Fixed medium-term on September 21, 2026
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Principal amount	$ 1,233
Rate	5.20%
Long term	$ 1,233
Fixed medium-term on November 9, 2026
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Principal amount	$ 381
Rate	5.04%
Long term	$ 381
Fixed medium-term on May 2, 2028
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Principal amount	$ 20,000
Rate	3.88%
Long term	$ 20,000