Annual report pursuant to Section 13 and 15(d)

Acquisition and Disposition - Schedule of Selected Financial Data of the Company's Gain from Sale (Details)

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Acquisition and Disposition - Schedule of Selected Financial Data of the Company's Gain from Sale (Details) - USD ($)
12 Months Ended
Apr. 30, 2018
Apr. 30, 2017
Net gain from sale of Dataram Memory business $ 94,485
Dataram Memory [Member]    
Total consideration 900,000  
Direct legal and sales commission expenses related to the sale (201,510)  
Dataram's accrued expenses to be deducted from the sales proceeds (174,880)  
Total carrying value of Dataram Memory business on date of sale (429,125)  
Net gain from sale of Dataram Memory business 94,485  
Current assets 3,271,426  
Other assets 33,320  
Current liabilities (2,866,660)  
Liabilities - long term (8,961)  
Total carrying value of Dataram Memory business on date of sale $ 429,125