LEASES (Lease expense and other information related to operating leases) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Lease expenses:
Operating lease expense	$ 273	$ 81	$ 695	$ 243
Short term lease expense	145	27	378	90
Total lease expense	418	108	1,073	333
Other information related to leases [Abstract]
Operating cash flows from operating leases	271	85	695	254
Right-of-use asset obtained in exchange for operating lease liability	$ 85	$ 13	$ 5,206	$ 1,794
Weighted-average remaining lease term - operating leases (in years)	15 years 4 months 24 days	7 years	15 years 4 months 24 days	7 years
Weighted-average discount rate - operating leases	2.30%	2.90%	2.30%	2.90%