STOCKHOLDERS EQUITY - Common Stock Issued, Net of Issuance Costs (Details) - USD ($) $ in Thousands				12 Months Ended
	Aug. 20, 2021	Dec. 04, 2020	Apr. 14, 2017	Dec. 31, 2023	Dec. 31, 2022
Net proceeds from common stock				$ 5,497	$ 25,901
Aggregate offering price				$ 5,497	$ 25,901
Lincoln Park
Number of common stock issued				900,000
Net proceeds from common stock				$ 800
2020 Lincoln Park PA | Lincoln Park
Maximum aggregate offering price		$ 100,000
Registered share available for future sales		16,000,000
Period for financing from common stock		36 months
Number of common stock issued				900,000	0
Net proceeds from common stock				$ 800
ATM Offering Agreement
Number of common stock issued				5,700,000
Net proceeds from common stock	$ 50,000			$ 4,700
ATM Offering Agreement | Maximum
Aggregate offering price				$ 16,000
ATM Offering Agreement | Cantor Fitzgerald & Co
Number of common stock issued				5,700,000	13,000,000.0
Net proceeds from common stock				$ 4,700	$ 25,900
ATM Offering Agreement | Cantor Fitzgerald & Co | Maximum
Sales commission percentage			2.50%
Controlled Equity Offering Sales Agreement with Cantor Fitzgerald and Co.
Net proceeds from common stock				$ 34,000