SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Concentration of Credit Risk and Major Customers (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($) customer	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) customer	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Concentration of Credit Risk and Major Customers
Accounts receivable	$ 13,593,641		$ 13,593,641		$ 19,065,919
Total Revenues	11,255,864	$ 9,442,253	24,827,933	$ 26,424,380
Royalties
Concentration of Credit Risk and Major Customers
Total Revenues	9,255,864	9,442,253	22,827,933	26,424,380
Endo
Concentration of Credit Risk and Major Customers
Accounts receivable	13,600,000		13,600,000		$ 19,100,000
Total Revenues	$ 11,300,000	$ 9,400,000	$ 24,800,000	$ 26,400,000
Endo | Revenues | Customer Concentration Risk
Concentration of Credit Risk and Major Customers
Number of customers | customer	1		1