Acquisition and Disposition (Details Narrative) - USD ($)			1 Months Ended	3 Months Ended		6 Months Ended
	Oct. 13, 2017	May 23, 2017	May 31, 2017	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2017	Oct. 31, 2016	Apr. 30, 2017
Common stock shares outstanding				14,156,766		14,156,766		6,932,059
Impairment expense						$ 6,094,760
Net proceeds from sales of common stock						2,590,004
Assets discontinued operations				$ 372,086		372,086		$ 0
Gain on extinguishment of liabilities				(245,256)		(245,256)
Estimated liability				(3,541,868)		(3,541,868)
Distribution payable				254,744		254,744
Gain from sale of discontinued operations				102,023		102,023
Credit Facility [Member]
Estimated liability				$ 500,000		$ 500,000
Gold King [Member]
Common stock shares outstanding				1,204,667		1,204,667
Acquisition consideration fair value per share						$ 4.70
Quoted trading price on the date of the Merger				$ 5,661,935		$ 5,661,935
Goodwill				6,094,760		6,094,760
Estimated liability				(3,541,868)		(3,541,868)
Dataram Memory [Member]
Purchase price	$ 900,000
Net proceeds from sales of common stock						326,404
Legal and commission expenses						201,510
Payment of obligations						167,342
Payable of escrow deposit				204,744		204,744
Financing Agreement [Member] | Rosenthal & Rosenthal, Inc [Member]
Revolving line of credit maximum borrowing capacity				$ 3,500,000		$ 3,500,000
Financing Agreement [Member] | Rosenthal & Rosenthal, Inc [Member] | Prime Rate [Member]
Line of credit interest rate, percentage						3.25%
Financing Agreement [Member] | Rosenthal & Rosenthal, Inc [Member] | Effective Rate [Member]
Line of credit interest rate, percentage						3.00%
Financing Agreement [Member] | Dataram Memory [Member] | Rosenthal & Rosenthal, Inc [Member]
Liabilities related to financing agreement						$ 0
Series C Preferred Stock [Member] | Escrow Agreement [Member]
Number of shares held for escrow		4,500.01
Holders Of Gold King's [Member]
Number of common shares issued for acquisition		2,446,433
Conversion price per share		$ 0.001
Holders Of Gold King's [Member] | Series C Preferred Stock [Member]
Number of common shares issued for acquisition			4,523,589
Number of common stock options issued in connection with acquisition			231,458
Holders Of Gold King's [Member] | Series C Preferred Stock [Member] | Maximum [Member]
Number of warrants issued to purchase common stock			452,359
Copper King [Member] | Series C Convertible Preferred Stock [Member]
Number of common shares issued for acquisition		45,500.18
Conversion price per share		$ 0.001
Conversion of stock shares converted		45,000.18
Number of shares issued for conversion		4,500,180