SHAREHOLDERS’ EQUITY - Placement Agent Warrants - Series A Offering - General Information (Details) - USD ($)	12 Months Ended
	Jun. 30, 2017	Apr. 26, 2017	Jun. 30, 2016
SHAREHOLDERS’ EQUITY
Preferred dividends	$ 1,511,000
Accumulated deficit (no retained earnings)	(329,517,000)		$ (307,991,000)
Placement Agent Series A Warrants
SHAREHOLDERS’ EQUITY
Warrants issued to purchase shares of common stock (in shares)		51,650
Exercise price (in dollars per share)		$ 3.00
Fair value of warrants	15,029
Additional Paid-in Capital
SHAREHOLDERS’ EQUITY
Preferred dividends	$ 1,500,000