LOSS PER SHARE CALCULATION - Calculation of Earning Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Numerator for basic and diluted loss per share
Net loss	$ (8,705)	$ (40,595)	$ (29,882)
Preferred dividends	(668)	(668)	(668)
Net loss available to common shareholders	$ (9,373)	$ (41,263)	$ (30,550)
Denominator for basic loss per share - weighted average shares outstanding (in shares)	67,002,438	62,980,193	60,061,243
Effect of dilutive potential common shares (in shares)	0	0	0
Denominator for diluted loss per share (in shares)	67,002,438	62,980,193	60,061,243
Basic loss per share (in USD per share)	$ (0.14)	$ (0.66)	$ (0.51)
Diluted loss per share (in USD per share)	$ (0.14)	$ (0.66)	$ (0.51)