4. REVENUE RECOGNITION (Details Narrative) - License [Member] - USD ($)	3 Months Ended	6 Months Ended	44 Months Ended
	Jun. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Apr. 30, 2017
Disaggregation of Revenue [Line Items]
Upfront payment				$ 10,000,000.0
Appled against contract liability	$ 746,000	$ 1,200,000	$ 2,200,000