Debt Schedule of Short Term Debt (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Short-term Debt [Line Items]
Federal Home Loan Bank Overnight Advances	$ 0	$ 130,000,000
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	17,486,000	51,099,000
Short-term Borrowings	17,486,000	181,099,000
Federal Funds Purchased
Short-term Debt [Line Items]
Maximum Borrowing Capacity	52,000,000	67,000,000
Overnight Advances from the Federal Home Loan Bank of New York
Short-term Debt [Line Items]
Federal Home Loan Bank of New York	859,592,000	731,240,000
Federal Reserve Bank of New York
Short-term Debt [Line Items]
Maximum Borrowing Capacity	$ 610,643,000	$ 583,369,000

Amount after offset of short term borrowing where a bank borrows, at the federal funds rate, from another bank and securities that an entity sells and agrees to repurchase at a specified date for a specified price.

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Amount of advance from Federal Home Loan Bank (FHLBank) maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Carrying amount as of the balance sheet date of loans that have been pledged as collateral for borrowings. If the secured party has the right by contract or custom to sell or re-pledge the collateral, then the debtor reclassifies that asset and report that asset in its statement of financial position separately from other assets not so encumbered.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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