COMMITMENTS AND CONTINGENCIES, LEASE OTHER INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
COMMITMENTS AND CONTINGENCIES
Operating cash flows from short term leases	$ 2	$ 8
Operating cash flows from operating leases	95	93
Total cash paid for leases	$ 97	$ 101
Weighted-average remaining lease term - operating leases (years)	2 years 7 months 6 days	3 years 7 months 6 days
Weighted-average discount rate - operating leases	7.00%	7.00%

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Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

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Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Total amount of cash paid for operating activities during the current period.

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Amount of cash outflow for short-term lease payment excluded from lease liability.

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