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Leases (Tables) | 3 Months Ended
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Jul. 31, 2021
Leases |
Schedule of Operating Lease Costs | The components of lease expense in the Consolidated Statement of Operations for the three months ended July 31, 2021 and 2020 were as follows: Schedule of Operating Lease Costs
|  | 2021 |  |  | 2020 |
|  | Three months ended July 31, |
|  | 2021 |  |  | 2020 |
|  | (in thousands)
Operating lease cost |  | $ | 92 |  |  | $ | 79 |
Short-term lease cost |  |  | 5 |  |  |  | 2 |
Total lease cost |  | $ | 97 |  |  | $ | 81 |
Schedule of Right-of Use Assets and Lease Liabilities | Information related to the Company’s right-of use assets and lease liabilities as of July 31, 2021 was as follows: Schedule of Right-of Use Assets and Lease Liabilities
|  | July 31, 2021 |
|  | (in thousands) |
Operating lease: |  |  |  |
Operating right-of-use asset, net |  | $ | 967 |
Right-of-use liability- current |  |  | 317 |
Right-of-use liability- long term |  |  | 774 |
Total lease liability |  | $ | 1,091 |
Weighted average remaining lease term- operating leases |  |  | 3.10 years |
Weighted average discount rate- operating leases |  |  | 8.2 | %
Schedule of Future Minimum Lease Payments Under Operating Lease | Total remaining lease payments under the Company’s operating leases are as follows: Schedule of Future Minimum Lease Payments Under Operating Lease
|  | July 31, 2021 |
|  | (in thousands) |
Remainder of fiscal year 2022 |  | $ | 339 |
2023 |  |  | 391 |
2024 |  |  | 362 |
2025 |  |  | 182 |
Total future minimum lease payments |  | $ | 1,274 |
Less imputed interest |  |  | (183 | )
Total |  | $ | 1,091 |

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- Definition Schedule of Right-of Use Assets and Lease Liabilities [Table Text Block] + References No definition available. + Details
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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details
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- Definition Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123406913&loc=d3e41502-112717 + Details
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