SUBSEQUENT EVENTS - Closing of Additional Private Placement Offerings - Common Unit Offering (Details)				1 Months Ended	2 Months Ended	3 Months Ended	12 Months Ended
	Sep. 01, 2017 item $ / shares shares	Jul. 17, 2017 item	Jun. 05, 2017 USD ($) $ / shares shares	Apr. 26, 2017 item	Sep. 01, 2017 USD ($) $ / shares shares	Sep. 30, 2017 USD ($) shares	Jun. 30, 2017 USD ($) shares
SUBSEQUENT EVENTS
Number of closings of a private placement offerings held | item				4
Units issued (in shares)			4,335,625
Units issued, unit price (in dollars per share) | $ / shares			$ 1.46
Gross proceeds | $			$ 6,300,000
Subsequent Event
SUBSEQUENT EVENTS
Number of closings of a private placement offerings held | item	5	5
Units issued (in shares)					6,135,968	34,248
Units issued, unit price (in dollars per share) | $ / shares	$ 1.46				$ 1.46
Gross proceeds | $					$ 8,958,413	$ 50,001.24
Net proceeds | $					$ 7,619,724
Common Unit Investor Warrant
SUBSEQUENT EVENTS
Warrants issued to purchase shares of common stock (in shares)			3,251,726
Exercise price (in dollars per share) | $ / shares			$ 1.825
Number of shares each warrant can purchase (in shares)			0.75
Common Unit Investor Warrant | Subsequent Event
SUBSEQUENT EVENTS
Warrants issued to purchase shares of common stock (in shares)	4,601,992				4,601,992
Placement Agent Common Units Warrants
SUBSEQUENT EVENTS
Warrants issued to purchase shares of common stock (in shares)			303,502
Exercise price (in dollars per share) | $ / shares			$ 1.825
Number of shares each warrant can purchase (in shares)			303,502
Placement Agent Common Units Warrants | Subsequent Event
SUBSEQUENT EVENTS
Warrants issued to purchase shares of common stock (in shares)	429,544				429,544
Exercise price (in dollars per share) | $ / shares	$ 1.825				$ 1.825
Total equity issuance cost | $					$ 576,265
Common Stock
SUBSEQUENT EVENTS
Shares issued (in shares)			4,335,625				4,335,625
Percentage of placement agent commission fee (as a percent)			9.00%
Percentage of placement agent commission fee, referred subscribers (as a percent)			4.00%
Percentage of warrants to purchase a number of shares of common stock (as a percent)			7.00%
Total equity issuance cost | $			$ 600,000				$ 664,000
Common Stock | Subsequent Event
SUBSEQUENT EVENTS
Shares issued (in shares)	6,135,968