Going Concern (Details Narrative) - USD ($)			1 Months Ended		12 Months Ended
	Jun. 19, 2019	Nov. 02, 2018	Jan. 31, 2018	Jul. 31, 2017	Apr. 30, 2019	Apr. 30, 2018	Jul. 31, 2019	Jun. 30, 2019	Jan. 22, 2018
Cash					$ 2,197,181	$ 7,646,279
Working capital					2,700,000
Accumulated deficit					(26,275,102)	(18,228,552)
Net loss					(8,046,550)	(13,658,495)
Cash used in operating activities					(5,668,894)	(6,986,393)
Proceeds from convertible preferred stock and warrants						4,916,120
Gross sales
Number of shares sold				179,211
Number of shares sold, value				$ 500,000
Preferred stock, shares designated					50,000,000	50,000,000
Preferred stock, stated value					$ 0.001	$ 0.001
ATM Agreement [Member]
Gross sales		$ 1,000,000
Commission rate		3.00%
Number of shares sold					290,066
Net proceeds from sales of preferred stock					$ 219,796
Number of shares sold, value					$ 79,031
Shares issued price per share					$ 1.03
Securities Purchase Agreement [Member] | Subsequent Event [Member]
Preferred stock, conversion description	Each unit consisted of one (1) share of 0% Series F Preferred Stock and 878 Class X Warrants on a registered basis and 1,755 Class A Warrants on an unregistered basis. The Company sold a total of 1,250 Series F Preferred Stock, 2,193,750 Class A Warrants and 1,097,500 Class X Warrants under the agreement. Each share of Series F Preferred Stock, at the option of the holder at any time, may be converted into the number of shares of common stock of the Company determined by dividing the $2,000 (stated value per share of the Series F Preferred Stock) by a conversion price of $1.14 per share (approximately 2,193,750 shares of common stock), subject to adjustment. Each Class X Warrant is exercisable to acquire one share of our common stock and one Class Y Warrant at an exercise price of $1.14, for a period of six (6) months from the date of issuance. Each Class Y Warrant is exercisable to acquire one share of common stock at an exercise price of $1.14 per share, commencing six (6) months from the date of issuance (the "Initial Exercise Date") and will expire on a date that is the five (5) year anniversary of the Initial Exercise Date. Each Class A Warrant is exercisable to acquire one share of Common Stock at an exercise price of $1.14 per share, commencing six (6) months from the date of issuance and will expire on a date that is the five (5) year anniversary of the date of issuance. In aggregate, if all of the shares of common stock are issued on conversion of the Series F Preferred Stock and exercise of the Class A, Class X and Class Y warrants, the Company would issue a total of 6,582,500 shares of common stock (see Note 13).
Securities Purchase Agreement [Member] | Subsequent Event [Member] | Class A Warrants [Member]
Number of shares sold	878
Number of warrants sold	2,193,750
Warrant exercise price	$ 1.14
Securities Purchase Agreement [Member] | Subsequent Event [Member] | Class X Warrants [Member]
Number of shares sold	1,755
Number of warrants sold	1,097,500
Series F Preferred Stock [Member] | Subsequent Event [Member]
Preferred stock, shares designated	1,250
Preferred stock, stated value	$ 2,000
Preferred stock, conversion price per share	$ 1.14
Preferred stock, conversion description	Based on the initial Conversion Price, approximately 2,193,750 shares of common stock would be issuable upon conversion of all of the Series F Preferred Stock to be sold pursuant to the Purchase Agreement. A holder of Series F Preferred Stock shall have no right to convert any portion of the Preferred Stock to the extent that, after giving effect to such conversion, the holder would beneficially own in excess of 4.99% (or, at the election of a holder after providing 61 days' prior written notice to the Company, 9.99%) of the number of shares of common stock outstanding immediately after giving effect to the issuance of shares of common stock upon such conversion.
Shares issued upon conversion of preferred stock							298	202
Series F Preferred Stock [Member] | Securities Purchase Agreement [Member] | Subsequent Event [Member]
Number of shares sold	1,250
Number of shares sold, value	$ 2,500,000
Shares issued price per share	$ 2,000
Conversion of stock, shares converted	2,193,750
Warrant exercise price	$ 1.14
Shares issued upon conversion of preferred stock	6,582,500
Series F Preferred Stock [Member] | Securities Purchase Agreement [Member] | Subsequent Event [Member] | Class A Warrants [Member]
Number of warrants sold	2,193,750
Series F Preferred Stock [Member] | Securities Purchase Agreement [Member] | Subsequent Event [Member] | Class X Warrants [Member]
Number of warrants sold	1,097,500
Private Placement [Member]
Warrant exercise price									$ 3.30
Private Placement [Member] | Series E Preferred Stock [Member]
Proceeds from convertible preferred stock and warrants			$ 4,900,000