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Property and Equipment (Tables) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2016 | Apr. 30, 2015
Property, Plant and Equipment [Abstract] |  |
Property, Plant and Equipment [Table Text Block] | Property and equipment consisted of the following (table in thousands):
|  | January 31, |  | April 30, |
|  | 2016 |  | 2015 |
|  | (unaudited) |  |  |
Furniture and fixtures |  | $ | 73 |  | $ | 70 |
Computer equipment and software |  |  | 710 |  |  | 685 |
Laboratory equipment |  |  | 641 |  |  | 493 |
Leasehold improvements |  |  | 2 |  |  | 2 |
Total property and equipment |  |  | 1,426 |  |  | 1,250 |
Less: Accumulated depreciation |  |  | (912) |  |  | (798) |
Property and equipment, net |  | $ | 514 |  | $ | 452 |
Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block] | The following is a schedule by years of future minimum lease payments under this capital lease together with the present value of the net minimum lease payments as of January 31, 2016 (table in thousands):
For the Years Ended April 30, |  | Total |
2016 (remaining) |  | $ | 6 |
2017 |  |  | 24 |
2018 |  |  | 25 |
2019 |  |  | 27 |
2020 |  |  | 16 |
Total minimum payments |  |  | 98 |
Less: amount representing interest |  |  | (10) |
Present value of minimum payments |  |  | 88 |
Less: current portion |  |  | (24) |
|  | $ | 64 |
| The following is a schedule by years of future minimum lease payments under this capital lease together with the present value of the net minimum lease payments as of April 30, 2015:
For the Years Ended April 30, |  | 2016 |  |  | 23 |
|  | 2017 |  |  | 24 |
|  | 2018 |  |  | 25 |
|  | 2019 |  |  | 26 |
|  | 2020 |  |  | 16 |
Total minimum lease payments |  |  |  | $ | 114 |
Less: current maturity |  |  |  |  | (23) |
Long-term maturity |  |  |  |  | 91 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph b -Article 5 + Details
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- Definition Tabular disclosure of future minimum lease payments as of the date of the latest balance sheet presented, in aggregate and for each of the five years succeeding fiscal years, with separate deductions from the total for the amount representing executor costs, including any profit thereon, included in the minimum lease payments and for the amount of the imputed interest necessary to reduce the net minimum lease payments to present value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 + Details
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