INCOME TAXES - Addtional Information (Details) - USD ($) $ in Thousands	3 Months Ended							6 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2017	Dec. 31, 2016	Mar. 31, 2018	Mar. 31, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2014	Jun. 30, 2016
Income Tax Disclosure [Abstract]
Reduction valuation allowances recorded in prior periods															$ 64,000
Provision (benefit) for income taxes	$ 20	$ (157)	$ 28	$ 26	$ 23	$ 23	$ 23	$ (129)	$ 46	$ (109)	$ 69	$ 262	$ (101)	$ 95
Benefit for income taxes, alternative minimum tax credit													$ 100
Federal statutory rate												21.00%	27.50%	34.00%
Federal operating loss carryforwards												$ 155,000
State operating loss carryforwards												194,000
Unrecognized tax benefits				$ 0								210	$ 0	$ 0		$ 0
Accrued interest and penalties												$ 30	$ 0	$ 0