Discontinued Operations - Additional Information (Details) $ in Thousands		3 Months Ended		6 Months Ended
	Sep. 18, 2023 USD ($)	Oct. 31, 2023 USD ($)	Oct. 31, 2022 USD ($)	Oct. 31, 2023 USD ($)	Oct. 31, 2022 USD ($)	May 01, 2023 USD ($)	Apr. 30, 2023 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Earnings from operations of discontinued operations		$ 79	$ 241	$ 255	$ 387
Retained deficit		25,152		25,152			$ 22,748
Other current liabilities		2,983		2,983			$ 3,638
Revision of Prior Period, Error Correction, Adjustment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Earnings from operations of discontinued operations			$ 24		$ (45)
Retained deficit						$ 1,000
Other current liabilities						$ 1,000
Discontinued Operations, Disposed of by Sale | TPM
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Equity interest (in percent)	1
Proceeds from sale of equity method investments	$ 2,100
Escrow deposit		300		300
Equal increments for release of escrow deposit not subject to then outstanding indemnification claims		$ 100		$ 100