STOCKHOLDERS' EQUITY (Details)		3 Months Ended	6 Months Ended
	Feb. 03, 2020	Jun. 30, 2021 shares	Jun. 30, 2021 shares	Dec. 31, 2020 shares
Class of Warrant or Right [Line Items]
Stock split ratio	0.25
HC Group Holdings I, LLC
Class of Warrant or Right [Line Items]
Percentage of common stock			0.377
Common Stock | Public Offering | HC Group Holdings I, LLC
Class of Warrant or Right [Line Items]
Additional shares issued (in shares)		17,250,000	46,500,000
Common Stock | 2017 Warrants
Class of Warrant or Right [Line Items]
Number of shares purchasable through warrants (in shares)		1,400,000	1,400,000	1,400,000
Common Stock | 2015 Warrants
Class of Warrant or Right [Line Items]
Number of shares purchasable through warrants (in shares)		900,000	900,000	900,000