OTHER BENEFITS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
UNITED STATES
Benefit plan
Employer matching contribution to defined contribution plan (as a percent)	0.00%	0.00%	0.00%	0.00%
DENMARK
Benefit plan
Employer matching contribution to defined contribution plan (as a percent)	0.00%	0.00%	0.00%	0.00%
Costs for employee health insurance benefits	$ 0	$ 0	$ 0	$ 0