Debt (Details - Net carrying amount equity component - Convertible Debt Equity Component [Member] - USD ($) $ in Thousands		Jul. 31, 2021	Apr. 30, 2021
Debt Instrument [Line Items]
Equity component (debt discount)		$ 0	$ 44,051
Issuance costs		0	(1,620)
Net carrying amount (1)	[1]	$ 0	$ 42,431

[1] As discussed above, the adoption of ASU 2020-06 on May 1, 2021 resulted in the re-combination of the debt and equity components of the Convertible Notes into a single debt instrument. Accordingly, the unamortized debt discount balance and the net carrying amount of the equity component were derecognized.