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Commitments and Contingencies (Details Textual) - USD ($) | 12 Months Ended
--- | ---
Apr. 30, 2015 | Apr. 30, 2014
Corporate Headquarters [Member] |  |
Commitments and Contingencies [Line Items] |  |
Lease Expiration Date | Nov. 30, 2016 |
Operating Leases, Rent Expense | $ 85,000 | $ 75,000
Laboratories and Office Space [Member] |  |
Commitments and Contingencies [Line Items] |  |
Lease Expiration Date | Jun. 30, 2016 |
Operating Leases, Rent Expense | $ 86,000 | 85,000
Israel Office Headquarters [Member] |  |
Commitments and Contingencies [Line Items] |  |
Operating Leases, Rent Expense | $ 0 | 6,000
Singapore Office Headquarters in Singapore [Member] |  |
Commitments and Contingencies [Line Items] |  |
Lease Expiration Date | Jan. 31, 2015 |
Operating Leases, Rent Expense | $ 4,000 | 5,000
New York Laboratory [Member] |  |
Commitments and Contingencies [Line Items] |  |
Lease Expiration Date | Sep. 30, 2015 |
Operating Leases, Rent Expense | $ 47,000 | $ 4,000

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- References No definition available. + Details
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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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- Definition Date which lease or group of leases is set to expire, in CCYY-MM-DD format. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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Namespace Prefix: |
Data Type: | na
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- Details
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Balance Type: |
Period Type: |