Related Party Transactions (Details Narrative) (USD $)	9 Months Ended			9 Months Ended		3 Months Ended		0 Months Ended	3 Months Ended	9 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2013 Acquisition of Certain MMB Assets	Jan. 31, 2013 Sheerr Memory integer	Jan. 31, 2012 Sheerr Memory	Jan. 31, 2013 Sheerr Memory	Jan. 31, 2012 Sheerr Memory	Dec. 14, 2011 Note and Security Agreement Mr. Sheerr integer	Jan. 31, 2013 Note and Security Agreement Mr. Sheerr	Jan. 31, 2013 Note and Security Agreement Mr. Sheerr
Related Party Transactions (Textual) [Abstract]
Purchase of inventories for resale				$ 2,696,000	$ 3,628,000	$ 584,000	$ 300,000
Accounts payable			69,000	74,000				438,000
Interest paid	146,824	277,212
Creditor trade cycle term				30 days
Maximum secured financing under agreement				2,000,000				2,000,000
Interest rate				0.00%				10.00%
Frequency of periodic payment								Monthly
Number of installments				60				60
Date of first required payment, principal amount								Jul. 15, 2012
Amount borrowed on closing of agreement				1,500,000				1,500,000
Repayment of Note	233,333	(500,000)						1,500,000
Amount borrowed under agreement				2,000,000				2,000,000
Principal amount due per month								33,333
Principal amount due for the fiscal year ending April 30, 2013				333,333				333,333
Principal amounts due in each of four fiscal periods from May 1, 2013 thru April 30, 2017				400,000				400,000
Principal amount due in the fiscal period from May 1, 2017 thru June 30, 2017				66,667				66,667
Interest expense									45,991	145,370
Interest payable									$ 15,213	$ 15,213