Summary of Significant Accounting Policies - Property and Equipment (Details Narrative) - USD ($)	12 Months Ended
Apr. 30, 2015	Apr. 30, 2014
Summary Of Significant Accounting Policies - Liquidity And Basis Of Presentation Details Narrative
Depreciation and amortization expense related to property and equipment	$ 127,000	$ 167,000

Depreciation and amortization of property, plant and equipment directly related to goods produced and sold and services rendered by an entity during the reporting period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Name:	us-gaap_CostOfGoodsAndServicesSoldDepreciationAndAmortization
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration