Summary of Significant Accounting Policies - Goodwill (Details) - USD ($)	12 Months Ended
	Apr. 30, 2015	Apr. 30, 2014
Summary Of Significant Accounting Policies - Liquidity And Basis Of Presentation Details Narrative
Opening balance May 1	$ 1,083,000	$ 1,083,000
Contingently purchase price
Impairment charge
Goodwill balance April 30	$ 1,083,000	$ 1,083,000