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Acquisition of 3dent Technologies, LLC - Schedule of Consolidated Statement of Operations of Acquisition (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2021	Apr. 30, 2020
Revenue	$ 1,206	$ 1,682
Net loss	(14,760)	$ (10,352)
3Dent Acquisition [Member]
Revenue	35
Net loss	$ (463)

X

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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