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Income Taxes - Narrative (Details) - USD ($) |  |  | 12 Months Ended
--- | --- | --- | ---
Apr. 30, 2022 | Dec. 31, 2021 | May 31, 2023 | May 31, 2022 | May 31, 2021
Income Taxes (Textual) [Abstract] |  |  |  |  |
Goodwill impairment | $ 0 | $ 0 | $ 14,549,000 | $ 0 | $ 0
Additional unrecognized tax benefit |  |  | 500,000 |  |
Accrued interest and penalties |  |  | 0 | 0 |
Eximo Medical, Ltd. |  |  |  |  |
Income Taxes (Textual) [Abstract] |  |  |  |  |
Deferred tax liability, purchase accounting adjustment |  |  | 5,800,000 | $ 8,800,000 |
Federal |  |  |  |  |
Income Taxes (Textual) [Abstract] |  |  |  |  |
Net operating loss carryforwards after considering limitations of use |  |  | 169,700,000 |  |
Tax Year 2022 and 2023 | Federal |  |  |  |  |
Income Taxes (Textual) [Abstract] |  |  |  |  |
Federal and State net operating loss carryforwards |  |  | 5,200,000 |  |
Tax Year 2028 and 2037 | Federal |  |  |  |  |
Income Taxes (Textual) [Abstract] |  |  |  |  |
Net operating loss carryforwards after considering limitations of use |  |  | 79,400,000 |  |
Indefinite | Federal |  |  |  |  |
Income Taxes (Textual) [Abstract] |  |  |  |  |
Net operating loss carryforwards after considering limitations of use |  |  | 85,100,000 |  |
Indefinite | Israel |  |  |  |  |
Income Taxes (Textual) [Abstract] |  |  |  |  |
Federal and State net operating loss carryforwards |  |  | 16,300,000 |  |
Tax Year 2020 To 2040 | State |  |  |  |  |
Income Taxes (Textual) [Abstract] |  |  |  |  |
Federal and State net operating loss carryforwards |  |  | $ 24,100,000 |  |

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- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=99380562&loc=d3e13777-109266 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 55 -Paragraph 24 -URI https://asc.fasb.org/extlink&oid=122137925&loc=d3e14258-109268 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
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