Segment and Geographic Area Information (Schedule of Net Sales and Tangible Long-lived Assets by Geographical Areas) (Details) - USD ($)	3 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Apr. 30, 2022
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 105,572,856	$ 85,739,434
Total tangible long-lived assets, net	45,874,831		$ 46,919,979
Operating Segments [Member] | U.S. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	25,890,629	18,984,369
Total tangible long-lived assets, net	21,529,540		21,968,745
Operating Segments [Member] | China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	13,592,386	12,030,679
Total tangible long-lived assets, net	4,864,734		4,778,610
Operating Segments [Member] | Vietnam [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	3,592,644	3,974,931
Operating Segments [Member] | Mexico [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	62,497,197	$ 50,749,455
Total tangible long-lived assets, net	18,308,523		19,606,131
Operating Segments [Member] | Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total tangible long-lived assets, net	$ 1,172,033		$ 566,493