EARNINGS (LOSS) PER SHARE - Calculation of Earning Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		36 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Jun. 30, 2019
Numerator for basic and diluted earnings per share
Net loss	$ (12,897)	$ (6,320)	$ (50,800)
Preferred dividends	(334)	(334)
Net loss applicable to common shares	$ (13,231)	$ (6,654)
Denominator for basic loss per share - Weighted average shares outstanding (in shares)	60,096,852	60,053,912
Effect of dilutive potential common shares (in shares)	0	0
Denominator for diluted loss per share - Adjusted weighted average shares outstanding (in shares)	60,096,852	60,053,912
Basic loss per share (in dollars per share)	$ (0.22)	$ (0.11)
Diluted loss per share (in dollars per share)	$ (0.22)	$ (0.11)