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OPERATING LEASE COMMITMENTS AND CONTINGENCIES - Trust Department Tax Reporting Contingency (Details) - Trust Department Tax Reporting Contingency - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Trust Department Tax Reporting Contingency
Estimated losses	$ 571,000	$ 12,000
Accrued Interest and Other Liabilities
Trust Department Tax Reporting Contingency
Tax compliance matters	$ 322,000

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