COMMON STOCK - Warrants (Details) - shares		3 Months Ended
	Oct. 06, 2020	Mar. 31, 2021	Mar. 31, 2020
Class of Warrant or Right [Line Items]
Warrants outstanding at beginning of period		0	197,622
Issued		0	0
Expired		0	0
Warrants outstanding at end of period		0	197,622
Lincoln Park
Class of Warrant or Right [Line Items]
Issued	118,799
Exercised	182,515