LEASES - Assets and liabilities as well as the costs of operating and financial leases (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Leases - Assets
Operating - Other assets	$ 1,258		$ 1,258		$ 1,360
Finance - Bank premises and equipment	1,453		1,453		1,503
Total Leased Assets	2,711		2,711		2,863
Leases - Liabilities
Operating - Other liabilities	1,258		1,258		1,360
Finance - Finance lease	1,696		1,696		1,718
Total lease liabilities	2,954		2,954		$ 3,078
Lease cost
Operating leases - Premises and equipment	61	$ 61	123	$ 123
Finance leases: Amortization of leased assets - Premises and equipment	25	47	51	120
Finance leases: Interest on finance leases - Interest expense	36	46	71	92
Total lease cost	$ 122	$ 154	$ 245	$ 335
Weighted Average Remaining Lease Term
Operating leases	8 years 3 months 18 days		8 years 3 months 18 days		8 years 7 months 6 days
Financing leases	14 years 10 months 24 days		14 years 10 months 24 days		13 years 1 month 6 days
Weighted Average Discount Rate
Operating leases	3.73%		3.73%		3.70%
Financing leases	8.38%		8.38%		6.20%