Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Going Concern (Details Narrative)

v3.19.1

Going Concern (Details Narrative) - USD ($)		1 Months Ended	3 Months Ended		4 Months Ended		9 Months Ended
Going Concern (Details Narrative) - USD ($)	Nov. 02, 2018	Jan. 31, 2018	Jan. 31, 2019	Jan. 31, 2018	Oct. 31, 2017	Oct. 31, 2016	Jan. 31, 2019	Jan. 31, 2018	Dec. 27, 2018	Apr. 30, 2018	Apr. 30, 2017
Cash		$ 8,373,535	$ 3,193,548	$ 8,373,535			$ 3,193,548	$ 8,373,535		$ 7,646,279	$ 6,820,623
Working capital			3,200,000				3,200,000
Accumulated deficit			(24,783,857)				(24,783,857)			$ (18,228,552)
Cash used in operating activities							(4,631,603)	(6,261,637)
Net proceeds from sales of common stock							178,872	2,590,004
Proceeds from convertible preferred stock and warrants								4,918,620
Gross sales
Shares issued price per share			$ 1.36				$ 1.36		$ 0.92
ATM Agreement [Member]
Net proceeds from sales of common stock							$ 178,872
Gross sales	$ 1,000,000
Commission rate	3.00%
Common stock sold							235,071
Net issuance costs							$ 60,330
Shares issued price per share			$ 1.02				$ 1.02
Private Placement [Member]
Net proceeds from sales of common stock					$ 2,600,000
Private Placement [Member] \| Series B Convertible Preferred Stock and Series C Convertible Preferred Stock [Member]
Proceeds from convertible preferred stock						$ 10,900,000
Private Placement [Member] \| Series E Preferred Stock [Member]
Proceeds from convertible preferred stock and warrants		$ 4,900,000

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