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Acquisition of 3dent Technologies, LLC (Details Narrative) - USD ($)		12 Months Ended
	Feb. 01, 2021	Apr. 30, 2021	Apr. 30, 2020
Number of common stock value			$ 295,000
Selling, general and administrative expenses		$ 7,772,000	$ 6,916,000
Performance-based Stock Options [Member]
Net loss included equity compensation expense		$ 231,201
Trade Names [Member]
Intangible asset estimated lives		12 years
Customer Relationship [Member]
Intangible asset estimated lives		10 years
Acquisition-related Costs [Member]
Selling, general and administrative expenses		$ 152,000
3Dent Acquisition [Member]
Number of common stock issued, shares	361,991
Number of common stock value	$ 360,000
Fair value of adjusted restricted shares on acquisition		$ 1,200,000

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