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Goodwill (Tables) | 12 Months Ended
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Apr. 30, 2022
Goodwill. |
Schedule of the changes in goodwill balances | The following table presents the changes in the Company’s goodwill balance (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Small UAS | ​ | TMS | ​ | MUAS | ​ | HAPS | ​ | All other | ​ | Total
Balance at April 30, 2021 | ​ | $ | 6,340 | ​ | $ | — | ​ | $ | 288,611 | ​ | $ | — | ​ | $ | 19,254 | ​ | $ | 314,205
Additions to goodwill | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1,546 | ​ | ​ | — | ​ | ​ | 18,596 | ​ | ​ | 20,142
Balance at April 30, 2022 | ​ | $ | 6,340 | ​ | $ | — | ​ | $ | 290,157 | ​ | $ | — | ​ | $ | 37,850 | ​ | $ | 334,347
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Small UAS | ​ | TMS | ​ | MUAS | ​ | HAPS | ​ | All other | ​ | Total
Balance at April 30, 2020 | ​ | $ | 6,340 | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 6,340
Additions to goodwill | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 288,611 | ​ | ​ | — | ​ | ​ | 19,254 | ​ | ​ | 307,865
Balance at April 30, 2021 | ​ | $ | 6,340 | ​ | $ | — | ​ | $ | 288,611 | ​ | $ | — | ​ | $ | 19,254 | ​ | $ | 314,205

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- Definition Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
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