ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES - Status of Our Business, Liquidity and Going Concern - Balance Sheet Accounts (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Current assets:
Unrestricted cash	$ 2,454	$ 10,327	$ 18,374
Current Liabilities:
Accounts payable and accrued expense liabilities	$ 4,682	$ 1,743