COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) renewal_term	Jun. 30, 2019 USD ($)	Jan. 01, 2020 USD ($)	Dec. 31, 2019 USD ($)
Commitments and Contingencies [Line Items]
Number of renewal terms (up to) | renewal_term			2
Renewal term	3 years		3 years
Operating lease right-of-use asset, net	$ 584		$ 584		$ 400	$ 0
Operating lease liability	397		397		$ 400	$ 0
Lease discount rate					6.00%
Lease remaining term					12 months
Amortization of the operating lease right-of-use asset	$ 100		$ 200
Rent expense		$ 100		$ 200
Remaining lease term	1 year 6 months		1 year 6 months
Future lease payments due	$ 600		$ 600
Operating expenses of leases	100	$ 100	200	$ 200
Accrued Liabilities
Commitments and Contingencies [Line Items]
Operating lease liability	400		400
Other Liabilities
Commitments and Contingencies [Line Items]
Operating lease liability	$ 200		$ 200
Yale University
Commitments and Contingencies [Line Items]
Term of agreement			5 years
Proceeds from collaboration			$ 1,000