SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Concentration of Credit Risk and Major Customers (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($) customer	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) customer	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Concentration of Credit Risk and Major Customers
Total revenues	$ 3,903,402	$ 8,852,986	$ 13,572,069	$ 16,982,127
Accounts receivable	11,696,598		11,696,598		$ 19,065,919
Endo
Concentration of Credit Risk and Major Customers
Total revenues	3,900,000	$ 8,900,000	13,600,000	$ 17,000,000.0
Accounts receivable	$ 11,700,000		$ 11,700,000		$ 19,100,000
Revenue | Customer Concentration Risk | Endo
Concentration of Credit Risk and Major Customers
Number of customers | customer	1		1