Liquidity (Details) - USD ($)				12 Months Ended
	Jul. 31, 2020	Jul. 10, 2020	May 22, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018	May 21, 2020	Mar. 16, 2020	Jan. 24, 2020	Jul. 19, 2017
Financial Condition [Line Items]
Retained Earnings (Accumulated Deficit)				$ (105,563,124)	$ (92,116,586)
Net loss				(13,446,538)	(8,424,440)	$ (8,563,455)
Net Cash Provided by (Used in) Operating Activities				(6,665,603)	(6,802,770)	$ (7,775,868)
Cash and cash equivalents				$ 13,708,594	$ 2,555,207
Common Stock, Par or Stated Value Per Share				$ 0.001	$ 0.001		$ 0.001		$ 8.45	$ 0.001
Common stock, par value (in dollars per share)				$ 0.001	$ 0.001		0.001		$ 8.45	$ 0.001
Common Stock, Shares Authorized				150,000,000	150,000,000			150,000,000
Price of a share							$ 7.30
Net proceeds from the offering			$ 9,200,000
Subsequent event | Sales Agreement [Member]
Financial Condition [Line Items]
Commission rate	3.50%
Fees and disbursements of legal counsel in an amount not to exceed	$ 50,000
Amount not to exceed quarter during the term of sales agreement	2,500
Underwriting option | Subsequent event
Financial Condition [Line Items]
Price of a share		$ 7.30
Net proceeds from the offering		$ 10,530,000
Shares issued		1,369,863
Additional shares		205,479
ATM Offering [Member] | Subsequent event | Sales Agreement [Member]
Financial Condition [Line Items]
Net proceeds from the offering	$ 50,000,000