STOCKHOLDERS' EQUITY - Authorized stock (Details) - $ / shares	Mar. 31, 2020	Dec. 31, 2019
STOCKHOLDERS’ EQUITY
Common Stock, authorized (in shares)	100,000,000	100,000,000
Common Stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred Stock, authorized (in shares)	10,000,000	10,000,000
Preferred Stock, par value (in dollars per share)	$ 0.0001	$ 0.0001