Related Party Transactions (Details Narrative) (USD $)	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2012
Sheerr Memory
Related Party Transactions (Textual) [Abstract]
Purchase of inventories for resale	$ 3,144,000	$ 3,158,000	$ 5,400,000
Accounts payable	271,000	158,000
Keystone Memory Group
Related Party Transactions (Textual) [Abstract]
Purchase of inventories for resale	1,058,000	564,000	290,000
Accounts payable	$ 27,000	$ 0
Note and Security Agreement | Mr. Sheerr
Related Party Transactions (Textual) [Abstract]
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.