LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES - (Details)	9 Months Ended
	Sep. 30, 2020 USD ($) borrower loan	Sep. 30, 2019 borrower	Dec. 31, 2019 USD ($)
Financing Receivable, Impaired [Line Items]
Loans outstanding	$ 464,000
Number of borrowers \| borrower	30	47
30-89 Days Past Due
Financing Receivable, Impaired [Line Items]
Loans outstanding	$ 851,000		$ 822,000
30-89 Days Past Due \| Substandard
Financing Receivable, Impaired [Line Items]
Loans outstanding	$ 464,000
Consumer
Financing Receivable, Impaired [Line Items]
Number of loans \| loan	1
Number of borrowers \| borrower	1
Amount of consumer and indirect loans, outstanding	$ 38,911
Amount of consumer and indirect loans, specific reserves	10,758
Consumer \| 30-89 Days Past Due
Financing Receivable, Impaired [Line Items]
Loans outstanding	68,000		$ 74,000
Commercial Real Estate \| 30-89 Days Past Due \| Substandard
Financing Receivable, Impaired [Line Items]
Loans outstanding	$ 464,000