OTHER REAL ESTATE LOANS AND REPOSSESSED ASSETS (Details)	12 Months Ended
	Dec. 31, 2019 USD ($) item	Dec. 31, 2018 USD ($) item	Dec. 31, 2017 USD ($)
OTHER REAL ESTATE LOANS AND REPOSSESSED ASSETS
Gain on sale of real estate, net	$ (181,000)	$ (126,000)	$ (40,000)
Write-downs and net loss on sales of repossessed assets	112,000	106,000	81,000
Write-downs of real estate		5,000	57,000
Operating expenses	82,000	110,000	(36,000)
Expenses applicable to foreclosed and repossessed assets	$ 13,000	$ 95,000	$ 62,000
Number of real estate properties foreclosed and repossessed | item	1	2
Foreclosed and repossessed assets, residential real estate properties	$ 298,000	$ 556,000
Foreclosed and repossessed assets, automobiles	421,000	193,000
Mortgage loans in the process of foreclosure	$ 3,900,000	$ 4,800,000