LEASES (Details) $ in Thousands	Jan. 01, 2019 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Feb. 28, 2017 ft²	Dec. 31, 2014 ft²
Sublease Agreement
Lease renewal term (in years)		5 years
Area of real estate property (square feet) | ft²				9,328	57,000
Expected income from sublease		$ 5,100
Right-of-use assets		9,703	$ 17,895
Lease liability		$ 10,700	$ 19,300
Weighted average remaining lease term		1 year 29 days
Leasehold improvement incentives from landlord		$ 600
Accounting Standards Update 2016-02
Sublease Agreement
Right-of-use assets	$ 32,800
Derecognized deferred rent	$ 400
Estimated incremental borrowing rate for estimation of present value of lease payments	9.00%