LEASES (Lease expense and other information related to operating leases) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Lease expenses:
Operating lease expense	$ 369	$ 273	$ 1,075	$ 695
Short term lease expense	181	145	490	378
Total lease expense	550	418	1,565	1,073
Other information related to leases [Abstract]
Operating cash flows from operating leases	410	271	1,197	695
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 269	$ 85	$ 784	$ 5,206
Weighted-average remaining lease term - operating leases (in years)	25 years	15 years 4 months 24 days	25 years	15 years 4 months 24 days
Weighted-average discount rate - operating leases	2.00%	2.30%	2.00%	2.30%