COMMITMENTS AND CONTINGENCIES, LEASE OTHER INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
COMMITMENTS AND CONTINGENCIES
Increase in operating right-of-use assets and liabilities related to lease modifications	$ 143		$ 143
Operating cash flows from short term leases	2	$ 5	4	$ 13
Operating cash flows from operating leases	98	93	194	186
Total cash paid for leases	100	$ 98	198	$ 199
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 143		$ 143
Weighted-average remaining lease term - operating leases (years)	2 years 6 months	3 years 3 months 18 days	2 years 6 months	3 years 3 months 18 days
Weighted-average discount rate - operating leases	5.70%	7.00%	5.70%	7.00%