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LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of year			$ 2,066	$ 2,541	$ 2,541
Charged off			(171)	(435)	(616)
Recoveries			90		256
Provision for loan losses	$ 487	$ 30	407	204	(115)
Balance, end of year	2,392		2,392		2,066
Individually evaluated for impairment:
Individually evaluated for impairment, Balance in allowance	11		11		15
Individually evaluated for impairment, Related loan balance	4,145		4,145		4,397
Collectively evaluated for impairment:
Collectively evaluated for impairment, Balance in allowance	2,381		2,381		2,051
Collectively evaluated for impairment, Related loan balance	280,818		280,818		280,341
Consumer
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of year			122	161	161
Charged off					(69)
Recoveries			8		16
Provision for loan losses			21		14
Balance, end of year	151		151		122
Individually evaluated for impairment:
Individually evaluated for impairment, Balance in allowance	11		11		15
Individually evaluated for impairment, Related loan balance	40		40		86
Collectively evaluated for impairment:
Collectively evaluated for impairment, Balance in allowance	140		140		107
Collectively evaluated for impairment, Related loan balance	12,181		12,181		11,990
Residential Real estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of year			589	864	864
Charged off					(16)
Recoveries			9		5
Provision for loan losses			155		(264)
Balance, end of year	753		753		589
Individually evaluated for impairment:
Individually evaluated for impairment, Related loan balance	535		535		631
Collectively evaluated for impairment:
Collectively evaluated for impairment, Balance in allowance	753		753		589
Collectively evaluated for impairment, Related loan balance	82,554		82,554		80,402
Indirect
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of year			917	988	988
Charged off			(171)		(504)
Recoveries			53		225
Provision for loan losses			84		208
Balance, end of year	883		883		917
Collectively evaluated for impairment:
Collectively evaluated for impairment, Balance in allowance	883		883		917
Collectively evaluated for impairment, Related loan balance	87,168		87,168		102,384
Commercial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of year			38	241	241
Charged off					(27)
Recoveries			20		10
Provision for loan losses			47		(186)
Balance, end of year	105		105		38
Collectively evaluated for impairment:
Collectively evaluated for impairment, Balance in allowance	105		105		38
Collectively evaluated for impairment, Related loan balance	11,809		11,809		11,907
Commercial SBA PPP
Collectively evaluated for impairment:
Collectively evaluated for impairment, Related loan balance	17,367		17,367
Construction
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of year			11	4	4
Provision for loan losses			5		7
Balance, end of year	16		16		11
Collectively evaluated for impairment:
Collectively evaluated for impairment, Balance in allowance	16		16		11
Collectively evaluated for impairment, Related loan balance	2,928		2,928		3,317
Commercial Real Estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance, beginning of year			389	$ 283	283
Provision for loan losses			95		106
Balance, end of year	484		484		389
Individually evaluated for impairment:
Individually evaluated for impairment, Related loan balance	3,570		3,570		3,680
Collectively evaluated for impairment:
Collectively evaluated for impairment, Balance in allowance	484		484		389
Collectively evaluated for impairment, Related loan balance	$ 66,811		$ 66,811		$ 70,341

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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Amount of recovery of financing receivables doubtful of collection that were previously charged off.

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Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

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