Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- 2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)
Notes Tables
Notes Details

5. STOCK OPTIONS AND WARRANTS (Details Narrative)

v3.10.0.1

5. STOCK OPTIONS AND WARRANTS (Details Narrative) - USD ($)	3 Months Ended		6 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2018	Oct. 31, 2017	Apr. 30, 2018
Stock based compensation - options			$ 210,189	$ 489,796
Options [Member]
Options outstanding	96,450,000		96,450,000		95,250,000
Options granted in period			1,200,000
Aggregate intrinsic value	$ 0		$ 0
Aggregate intrinsic value per share			$ 0.052
Non-Employee Options [Member]
Options granted in period			1,200,000	4,200,000
Stock based compensation - options	20,000	$ 57,000	$ 57,000	$ 98,000
Unrecognized compensation expense	45,000		$ 45,000
Unrecognized compensation expense weighted-average period			8 months
Employee Options [Member]
Options granted in period			0	2,950,000
Stock based compensation - options	77,000	$ 188,000	$ 153,000	$ 392,000
Unrecognized compensation expense	$ 51,000		$ 51,000
Unrecognized compensation expense weighted-average period			2 months
Warrants [Member] \| Placement Agent [Member] \| May 24, 2017 [Member]
Warrants issued, shares				833,333
Aggregate fair value of warrants issued				$ 20,000
Warrants [Member] \| Placement Agent [Member] \| July 26, 2017 [Member]
Warrants issued, shares				2,000,000
Aggregate fair value of warrants issued				$ 23,000
Warrants [Member] \| Placement Agent [Member] \| May 30, 2018 [Member]
Warrants issued, shares			1,388,889
Aggregate fair value of warrants issued			$ 19,000
Warrants [Member] \| Placement Agent [Member] \| June 28, 2018 [Member]
Warrants issued, shares			1,923,077
Aggregate fair value of warrants issued			$ 38,000

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