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Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2022	Apr. 30, 2021
Income Statement [Abstract]
Net loss	$ (18,874)	$ (14,760)
Foreign currency translation adjustment	(32)	12
Total comprehensive loss	$ (18,906)	$ (14,748)

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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