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Property and Equipment | 12 Months Ended
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Apr. 30, 2021
Property, Plant and Equipment [Abstract] |
Property and Equipment | (5) Property and Equipment The components of property and equipment as of April 30, 2021 and 2020 consisted of the following:
|  | April 30, 2021 |  |  | April 30, 2020 |
|  | (in thousands) |
Equipment |  | $ | 291 |  |  |  | 342 |
Computer equipment & software |  |  | 498 |  |  |  | 486 |
Office furniture & equipment |  |  | 341 |  |  |  | 339 |
Leasehold improvements |  |  | 474 |  |  |  | 474 |
Construction in process |  |  | 15 |  |  |  | 15 |
|  | $ | 1,619 |  |  | $ | 1,656 |
Less: accumulated depreciation |  |  | (1,213 | ) |  |  | (1,157 | )
|  | $ | 406 |  |  | $ | 499 |
Depreciation expense was approximately $0.1 million and $0.2 million for the years ended April 30, 2021 and 2020, respectively.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details
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