COMMITMENTS - Registration and Stockholder Rights (Details)	6 Months Ended
	Dec. 31, 2020 item
COMMITMENTS
Maximum demands that entity register on securities	2
Threshold period to exercise registration rights	3 months
Maximum demand registration right at entity's expense	1
Threshold period to exercise registration rights from the effective date of registration statement of Initial Public Offering	5 years
Threshold period to exercise "piggy-back" registration rights from the effective date of registration statement of Initial Public Offering	7 years