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Related Party Transactions | 12 Months Ended
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Apr. 30, 2021
Related Party Transactions |
Related Party Transactions | 19. Related Party Transactions ​ Pursuant to a consulting agreement, the Company paid a board member approximately $29,000, $59,000 and $55,000 for fiscal years ended April 30, 2021, 2020 and 2019, respectively, for consulting services independent of his board service. ​ Concurrent with the formation of HAPSMobile, the Company executed a Design and Development Agreement (the “DDA”) with HAPSMobile. Under the DDA and related efforts, the Company will use its best efforts, up to a maximum value of $180,806,000, to design and build prototype solar powered high altitude aircraft and ground control stations for HAPSMobile and conduct low altitude and high altitude flight tests of the prototype aircraft. ​ The Company recorded revenue under the DDA and preliminary design agreements between the Company and SoftBank of $42,426,000, $60,864,000 and $55,407,000 for the fiscal years ended April 30, 2021, 2020 and 2019, respectively. At April 30, 2021 and 2020, the Company had unbilled related party receivables from HAPSMobile of $544,000 and $15,779,000 recorded in unbilled receivables and retentions on the consolidated balance sheet, respectively. As of April 30, 2021, the Company owned approximately a 7% stake. Refer to Note 9 – Equity Method Investments for further details.

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- Definition The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -URI http://asc.fasb.org/topic&trid=2122745 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39691-107864 + Details
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