REVENUE FROM CONTRACTS WITH CUSTOMERS - Revenue By Operating Segment (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Net gains (losses) on sales of OREO	$ (18)	$ (29)
Changes in fair value of equity investments	86	(246)
Income from bank owned life insurance	15	119
Total non-interest income	5,621	4,730
Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Changes in fair value of equity investments	52	(79)
Total non-interest income	252	137
Overdraft fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	450	805
Overdraft fees \| Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	0	0
Other
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	267	185
Other \| Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	0	0
Interchange revenue from debit card transactions
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	1,123	925
Interchange revenue from debit card transactions \| Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	0	0
WMG fee income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	2,678	2,229
WMG fee income \| Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	0	0
CFS fee and commission income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	214	177
CFS fee and commission income \| Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	214	177
Net gains (losses) on sales of OREO
Disaggregation of Revenue [Line Items]
Net gains (losses) on sales of OREO	(18)	(29)
Net gains (losses) on sales of OREO \| Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Net gains (losses) on sales of OREO	0	0
Net gains on sales of loans
Disaggregation of Revenue [Line Items]
Revenue not from contact with customer	300	75
Net gains on sales of loans \| Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenue not from contact with customer	0	0
Loan servicing fees
Disaggregation of Revenue [Line Items]
Revenue not from contact with customer	35	27
Loan servicing fees \| Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenue not from contact with customer	0	0
Income from bank-owned life insurance
Disaggregation of Revenue [Line Items]
Income from bank owned life insurance	15	0
Income from bank-owned life insurance \| Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Income from bank owned life insurance	0	0
Other
Disaggregation of Revenue [Line Items]
Revenue not from contact with customer	471	582
Other \| Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Revenue not from contact with customer	(14)	39
Core Banking \| Operating Segments
Disaggregation of Revenue [Line Items]
Changes in fair value of equity investments	34	(167)
Total non-interest income	2,691	2,364
Core Banking \| Overdraft fees \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	450	805
Core Banking \| Other \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	267	185
Core Banking \| Interchange revenue from debit card transactions \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	1,123	925
Core Banking \| WMG fee income \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	0	0
Core Banking \| CFS fee and commission income \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	0	0
Core Banking \| Net gains (losses) on sales of OREO \| Operating Segments
Disaggregation of Revenue [Line Items]
Net gains (losses) on sales of OREO	(18)	(29)
Core Banking \| Net gains on sales of loans \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenue not from contact with customer	300	75
Core Banking \| Loan servicing fees \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenue not from contact with customer	35	27
Core Banking \| Income from bank-owned life insurance \| Operating Segments
Disaggregation of Revenue [Line Items]
Income from bank owned life insurance	15	0
Core Banking \| Other \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenue not from contact with customer	485	543
WMG \| Operating Segments
Disaggregation of Revenue [Line Items]
Changes in fair value of equity investments	0	0
Total non-interest income	2,678	2,229
WMG \| Overdraft fees \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	0	0
WMG \| Other \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	0	0
WMG \| Interchange revenue from debit card transactions \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	0	0
WMG \| WMG fee income \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	2,678	2,229
WMG \| CFS fee and commission income \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	0	0
WMG \| Net gains (losses) on sales of OREO \| Operating Segments
Disaggregation of Revenue [Line Items]
Net gains (losses) on sales of OREO	0	0
WMG \| Net gains on sales of loans \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenue not from contact with customer	0	0
WMG \| Loan servicing fees \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenue not from contact with customer	0	0
WMG \| Income from bank-owned life insurance \| Operating Segments
Disaggregation of Revenue [Line Items]
Income from bank owned life insurance	0	0
WMG \| Other \| Operating Segments
Disaggregation of Revenue [Line Items]
Revenue not from contact with customer	$ 0	$ 0

Earnings on or other increases in the value of the cash surrender value of bank owned life insurance policies.

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-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
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Amount of unrealized and realized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, and write-downs of other real estate owned after acquisition or physical possession.

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The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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