FAIR VALUE MEASUREMENTS - FV of Financial instruments., nonrecurring (Details) - Fair Value Measurements, Nonrecurring - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2023	Dec. 31, 2022
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]
FINANCIAL ASSETS: (Fair Value)
Cash and due from banks	$ 11,278	$ 9,441
Interest-bearing deposits in other banks	1,035	1,297
Restricted investment in bank stocks	8,352	7,136
Net loans	827,192	810,104
Mortgage servicing rights	304	319
Accrued interest receivable	4,035	4,391
FINANCIAL LIABILITIES: (Fair Value)
Demand, savings and other deposits	748,848	827,399
Time deposits	195,062	160,472
Short-term borrowings	179,939	153,209
Long-term borrowings	24,435	24,090
Subordinated debentures	22,990	22,365
Accrued interest payable	1,289	563
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1
FINANCIAL ASSETS: (Fair Value)
Cash and due from banks	11,278	9,441
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2
FINANCIAL ASSETS: (Fair Value)
Interest-bearing deposits in other banks	1,035	1,297
Restricted investment in bank stocks	8,352	7,136
Accrued interest receivable	4,035	4,391
FINANCIAL LIABILITIES: (Fair Value)
Demand, savings and other deposits	748,848	827,399
Time deposits	195,062	160,472
Short-term borrowings	179,939	153,209
Long-term borrowings	24,435	24,090
Subordinated debentures	22,990	22,365
Accrued interest payable	1,289	563
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 3
FINANCIAL ASSETS: (Fair Value)
Net loans	827,192	810,104
Mortgage servicing rights	304	319
Reported Value Measurement [Member]
FINANCIAL ASSETS: (Fair Value)
Cash and due from banks	11,278	9,441
Interest-bearing deposits in other banks	1,035	1,297
Restricted investment in bank stocks	8,352	7,136
Net loans	855,041	850,195
Mortgage servicing rights	304	319
Accrued interest receivable	4,035	4,391
FINANCIAL LIABILITIES: (Fair Value)
Demand, savings and other deposits	748,848	827,399
Time deposits	199,067	166,100
Short-term borrowings	179,907	153,418
Long-term borrowings	25,000	25,000
Subordinated debentures	25,000	25,000
Accrued interest payable	$ 1,289	$ 563

Fair value portion of accrued interest payable.

No definition available.

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- References

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- Definition

Fair value of interest-bearing deposits in other financial institutions for relatively short periods of time.

+ References

No definition available.

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- Definition

Represents the Fair value of Restricted Investment in Correspondent Bank Stock.

+ References

No definition available.

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- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

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- Definition

Fair value of subordinated debt obligations including, but not limited to, subordinated loan, subordinated bond, subordinated debenture or junior debt.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
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- Definition

Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-URI https://asc.fasb.org/subtopic&trid=2196772

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

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- Definition

Fair value portion of receivables, including, but not limited to, trade account receivables, note receivables, and loan receivables.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(7))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
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-URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611

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-Name Accounting Standards Codification
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-SubTopic 210
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-Paragraph 1
-Subparagraph (SX 210.7-03(a)(5))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

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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)
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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of short-term debt existing as of the balance sheet date.

+ References

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