EARNINGS (LOSS) PER SHARE - Calculation of Earning Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Mar. 31, 2019	Mar. 31, 2018
Numerator for basic and diluted earnings per share
Net (loss) income from continuing operations	$ (4,510)	$ (10,657)	$ (6,320)	$ (3,223)	$ (4,194)	$ (2,171)	$ (21,487)	$ (9,588)
Less: Preferred stock dividends	(334)			(334)			(668)	(668)
Net loss applicable to common shares	$ (4,844)			$ (3,557)			$ (22,155)	$ (10,256)
Denominator for basic earnings per share - Weighted average shares outstanding (in shares)	60,065,053			53,637,085			60,059,594	51,101,813
Effect of dilutive potential common shares (in shares)	0			0			0	0
Denominator for diluted earnings per share - Adjusted weighted average shares outstanding (in shares)	60,065,053			53,637,085			60,059,594	51,101,813
Basic loss per share (in dollars per share)	$ (0.08)			$ (0.07)			$ (0.37)	$ (0.20)
Diluted loss per share (in dollars per share)	$ (0.08)			$ (0.07)			$ (0.37)	$ (0.20)