MORTGAGE OPERATIONS (Details) - USD ($)	3 Months Ended	12 Months Ended
Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
MORTGAGE OPERATIONS [Abstract]
Real estate mortgage loans serviced	$ 207,204,000		$ 206,208,000
Key assumptions used in measuring the fair value of mortgage servicing rights [Abstract]
Constant prepayment rate	16.33%		20.22%
Discount rate	10.00%		10.00%
Weighted average life	4 years 9 months 14 days		3 years 11 months 15 days
Mortgage servicing rights [Roll Forward]
Beginning balance	$ 1,628,000
Additions	206,000
Reductions	(108,000)
Ending balance	1,726,000		$ 1,628,000
Valuation allowance [Roll Forward]
Beginning balance	(386,000)
Additions	0
Reductions	123,000
Ending balance	(263,000)		(386,000)
Mortgage servicing rights, net of valuation allowance [Roll Forward]
Beginning balance	1,242,000
Additions	206,000
Reductions	15,000
Ending balance	1,463,000
Fair value of mortgage servicing rights asset	1,463,000		$ 1,242,000
Contractually specified servicing fees	$ 134,000	$ 131,000

The balance represents the amount of loans serviced for others that are secured by real estate mortgages.

No definition available.

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- Definition

The value of new servicing assets, subsequently measured at amortized value, acquired or created during the current period through purchases or from transfers of financial assets, net of valuation allowance.

+ References

No definition available.

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Amortized carrying amount (balance) as of the balance sheet date of an asset representing net future revenues from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements, net of valuation allowance.

+ References

No definition available.

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- Definition

Amount of expense charged against earnings for the periodic recognition of servicing assets relative to estimated net servicing income, net of valuation allowance.

+ References

No definition available.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

All amounts that, per contract, are due to the servicer in exchange for servicing the financial asset and would no longer be received by a servicer if the beneficial owners of the serviced assets (or their trustees or agents) were to exercise their actual or potential authority under the contract to shift the servicing to another servicer. Depending on the servicing contract, those fees may include some or all of the difference between the interest rate collected on the asset being serviced and the rate to be paid to the beneficial owners of the asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=116651436&loc=d3e122596-111746

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- Definition

Amortized amount of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
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-Paragraph 4
-Subparagraph (a)(1)
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Amount of additions from purchases, assumption or transfer to contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

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No definition available.

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Amount conveyed to unrelated parties of contract to contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

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- Definition

Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 45
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745

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- References

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

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- Definition

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

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- Definition

Weighted average life of financial assets and financial liabilities, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Reflects the estimated amount of impairment as of the balance sheet date of recognized servicing assets that are being amortized in proportion to and over the period of estimated net servicing income or loss.

+ References

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Amount of increase in the valuation allowance for impairment of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer from charges to expense.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount of decrease in the valuation allowance for impairment of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer from recoveries recognized.

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