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RESTRICTIONS ON CASH AND DUE FROM BANK ACCOUNTS	12 Months Ended
RESTRICTIONS ON CASH AND DUE FROM BANK ACCOUNTS	Dec. 31, 2020
RESTRICTIONS ON CASH AND DUE FROM BANK ACCOUNTS [Abstract]
RESTRICTIONS ON CASH AND DUE FROM BANK ACCOUNTS	RESTRICTIONS ON CASH AND DUE FROM BANK ACCOUNTS The Corporation was in compliance with the reserve requirement with the Federal Reserve Bank of New York as of December 31, 2020. The Corporation also maintains a pre-funded settlement account with a financial institution in the amount of $1.6 million for electronic funds transaction settlement purposes at December 31, 2020 and 2019. The Corporation also maintains a collateral restricted account with a financial institution related to the Corporation's interest rate swap program. The account serves as collateral in the event of default on the interest rate swaps with the counterparties. The collateral held at the financial institution was $19.1 million as of December 31, 2020, and $9.4 million collateral held at the financial institution as of December 31, 2019.