COMMITMENTS AND CONTINGENCIES (Details Textual) - USD ($)	12 Months Ended
Apr. 30, 2015	Apr. 30, 2014
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Other Commitment	$ 183,000
Operating Leases, Rent Expense	$ 126,000	$ 353,000

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

No definition available.

Name:	us-gaap_OtherCommitment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant