Annual report pursuant to Section 13 and 15(d)

Related Party Transactions (Details Narrative)

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Related Party Transactions (Details Narrative)
 1 Months Ended 12 Months Ended
Oct. 31, 2013
USD ($)
integer
Dec. 31, 2011
USD ($)
Apr. 30, 2015
USD ($)
Apr. 30, 2014
USD ($)
Apr. 30, 2013
USD ($)
Related Party Transactions (Textual) [Abstract]          
Sale leaseback, gain on sale of assets     $ (71,000)    
Sale leaseback, portion of deferred gain in accrued liabilities     282,000 $ 929,000  
Sale leaseback, portion of deferred gain in other long term liabilities     179,000 250,000  
Sheerr Memory          
Related Party Transactions (Textual) [Abstract]          
Purchase of inventories for resale     1,348,000 3,144,000  
Accounts payable     $ 15,000 271,000  
Trade terms with related party     Sheerr Memory offers the Company trade terms of net 30 days and all invoices are settled in the normal course of business. No interest is paid.    
Mr. Sheerr | Note and Security Agreement          
Related Party Transactions (Textual) [Abstract]          
Formula-based secured debt financing capacity   $ 2,000,000      
Interest rate, description The Company was obligated to pay monthly interest equal to 10% per annum calculated on a 360 day year of the outstanding loan balance. The Company was obligated to pay monthly interest equal to 10% per annum calculated on a 360 day year of the outstanding loan balance.      
Financing agreement, borrowed amounts under line of credit   $ 2,000,000      
Principal amount due per month $ 33,333 $ 33,333      
Proceeds from sale of equipment and furniture 500,000        
Repayment of Note 500,000        
Amount borrowed under agreement $ 966,667        
Frequency of periodic payment Monthly        
Number of installments | integer 29        
Date of first required payment, principal amount Nov. 15, 2013        
Interest expense       122,000  
Sale leaseback transaction, lease terms The Company entered into an agreement with Mr. Sheerr to leaseback the equipment and furniture that was sold to Mr. Sheerr on October 31, 2013. The lease is for a term of 60 months and the Company is obligated to pay approximately $7,500 per month for the term of the lease. The Company has an option to extend the lease for an additional 2 year period.        
Sale leaseback, monthly rental payments $ 7,500        
Sale leaseback, gain on sale of assets 139,000        
Sale leaseback, deferred gain $ 322,000        
Sale leaseback, portion of deferred gain in accrued liabilities     $ 72,000 72,000  
Sale leaseback, portion of deferred gain in other long term liabilities     179,000 250,000  
Keystone Memory Group          
Related Party Transactions (Textual) [Abstract]          
Purchase of inventories for resale     1,150,000 $ 1,058,000  
Accounts payable     $ 32,000   $ 27,000
Trade terms with related party     Keystone Memory offers the Company trade terms of net due and all invoices are settled in the normal course of business. No interest is paid.