LICENSE AGREEMENTS AND COMMITMENTS - SADA License Agreement (Details) - SADA License Agreement $ in Thousands		1 Months Ended	3 Months Ended
	Apr. 15, 2020 USD ($) individual	Apr. 30, 2020 shares	Jun. 30, 2020 USD ($) shares
Agreements
Number of employees acquired | individual	0
Upfront payment	$ 1,995
Stock grant expense			$ 3,331
Issuance of common stock to strategic partner			$ 1,331
Issuance of common stock to strategic partner (in shares) | shares		42,900	42,900
Accrued stock issuance costs			$ 2,000
Annual minimum royalties payable	40
Annual minimum royalties payable from tenth anniversary	60
Clinical milestones potentially due	4,730
Regulatory milestones potentially due	18,125
Sales-based milestones potentially due	23,750
Maximum sales based milestone payments due for each construct previously generated	$ 60,000
Milestone expenses			$ 605
Milestone period	36 months