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Available for Sale Securities (Narrative) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2020
USD ($)
security
Dec. 31, 2019
USD ($)
security
Available for Sale Securities    
Number of individual available-for-sale securities with unrealized losses | security 36 80
Unrealized Losses $ 321 $ 861
Aggregate percentage of depreciation 1.01% 1.21%
Available for sale securities pledged to secure Federal Home Loan Bank of New York ("FHLBNY") borrowings $ 18,123 $ 23,782
Available for sale securities pledged to secure Federal Reserve Bank of New York ("FRBNY") borrowings 1,059 726
Proceeds from the sale of available for sale securities and calls 6,996 11,938
Gains on sales of investment securities 0 0
Losses on sales of investment securities $ 29 $ 69