Consolidated Statements of Changes in Stockholders' Equity - USD ($)	Preferred Stock Series A convertible preferred stock	Preferred Stock Series B convertible preferred stock	Preferred Stock Series C convertible preferred stock	Common Stock Series A convertible preferred stock	Common Stock Series C convertible preferred stock	Common Stock	Additional Paid in Capital Series A convertible preferred stock	Additional Paid in Capital Series C convertible preferred stock	Additional Paid in Capital	Accumulated Deficit	Series C convertible preferred stock	Total
Balance at Jun. 30, 2016	$ 12,500,000	$ 1,200,000				$ 403			$ 32,229,672	$ (44,612,495)		$ 1,317,580
Balance (in shares) at Jun. 30, 2016	1,250,000	120,000				4,028,905
Changes in Stockholders' Equity
Issuance of common stock, net						$ 231			24,659,528			24,659,759
Issuance of common stock, net (in shares)						2,305,235
Conversion of preferred stock	$ (11,459,872)	$ (1,200,000)				$ 311			12,659,561
Conversion of preferred stock (in shares)	(1,145,987)	(120,000)				3,118,271
Fair value of warrants issued in connection with equity offering									(3,976,501)			(3,976,501)
Exercise of warrants						$ 1			160,416			160,417
Exercise of warrants (in shares)						6,250
Stock option exercise						$ 0			31,277			31,277
Exercise of stock options (in shares)						4,758
Stock-based compensation expense						$ 0			1,756,385			1,756,385
Net loss										(14,891,050)		(14,891,050)
Balance at Jun. 30, 2017	$ 1,040,128					$ 946			67,520,338	(59,503,545)		9,057,867
Balance (in shares) at Jun. 30, 2017	104,013					9,463,419
Changes in Stockholders' Equity
Issuance of common stock, net						$ 33			1,410,608			1,410,641
Issuance of common stock, net (in shares)						329,078
Stock-based compensation expense									745,741			745,741
Net loss										(7,511,092)		(7,511,092)
Balance at Dec. 31, 2017	$ 1,040,128					$ 979			69,676,687	(67,014,637)		3,703,157
Balance (in shares) at Dec. 31, 2017	104,013					9,792,497
Changes in Stockholders' Equity
Issuance of common stock, net						$ 97			1,986,478			1,986,575
Issuance of Preferred stock			$ 5,734,627								$ 5,734,627
Issuance of Preferred stock (in shares)			10,826
Offering costs related to Issuance			$ (411,259)								$ (411,259)
Placement agent warrants			(221,269)						221,269
Beneficial conversion feature			(3,771,639)					$ 3,771,639
Accretion of beneficial conversion feature			3,771,639					(3,771,639)
Accretion of discount upon conversion			4,680,212					(4,680,212)
Conversion of preferred stock	$ (184,320)		$ (8,852,000)	$ 5	$ 571		$ 184,315	$ 8,851,429
Conversion of preferred stock (in shares)	(18,432)		(8,852)	48,000	5,710,963
Exercise of warrants						$ 9			176,727			176,736
Exercise of warrants (in shares)						92,000
Exercise of stock options (in shares)						965,052
Stock-based compensation expense									234,510			234,510
Net loss										(9,449,295)		(9,449,295)
Balance at Dec. 31, 2018	$ 855,808		$ 930,311			$ 1,661			$ 76,651,203	$ (76,463,932)		$ 1,975,051
Balance (in shares) at Dec. 31, 2018	85,581		1,974			16,608,512