11. SEGMENT REPORTING	9 Months Ended
Jan. 31, 2018
Segment Reporting [Abstract]
SEGMENT REPORTING	Changes in our Organizational Structure Historically, our business had been organized into two reportable operating segments: (i) our research and development segment, and (ii) our contract manufacturing services segment. However, as a result of the aforementioned discontinued operation (Note 10), management has determined that the Company now operates in only one operating segment. Accordingly, effective January 31, 2018, we reported our financial results for one reportable segment to reflect this new organizational structure. The accounting policies of our one reportable segment are the same as those described in Note 2. In addition, the financial results of our discontinued research and development segment are reflected as a loss from discontinued operations in the accompanying unaudited condensed consolidated financial statements for all periods presented (Note 10).

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-URI http://asc.fasb.org/topic&trid=2134510

Name:	us-gaap_SegmentReportingDisclosureTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration