MORTGAGE BANKING ACTIVITIES (Key unobservable inputs used in determining the fair value) (Details) - $ / LoanContracts	3 Months Ended	12 Months Ended
Mar. 31, 2022	Dec. 31, 2021
Maximum [Member]
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value [Abstract]
Discount rates	15.00%	15.00%
Annual prepayment speeds	19.55%	23.79%
Cost of servicing (per loan)	73	73
Minimum [Member]
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value [Abstract]
Discount rates	10.00%	11.00%
Annual prepayment speeds	7.12%	11.98%
Cost of servicing (per loan)	60	60

Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Cost of Servicing per loan.

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- Definition

Discount rate used to estimate the fair value of servicing assets and servicing liabilities.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=125521744&loc=d3e122596-111746

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- Definition

Estimated rate of prepayments of principal on servicing assets and servicing liabilities.

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