Segment and Geographic Area Information (Schedule of Net Sales and Tangible Long-lived Assets by Geographical Areas) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2022	Oct. 31, 2021	Apr. 30, 2022
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 108,676,743	$ 100,216,614	$ 214,249,599	$ 185,956,048
Total tangible long-lived assets, net	44,243,712		44,243,712		$ 46,919,979
Operating Segments [Member] | U.S. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	29,236,679	23,198,568	55,127,307	42,182,937
Total tangible long-lived assets, net	20,984,270		20,984,270		21,968,745
Operating Segments [Member] | China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	13,380,106	10,166,868	26,972,492	22,197,547
Total tangible long-lived assets, net	4,615,270		4,615,270		4,778,610
Operating Segments [Member] | Vietnam [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	2,762,806	3,476,162	6,355,450	7,451,093
Operating Segments [Member] | Mexico [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	63,297,152	$ 63,375,016	125,794,350	$ 114,124,471
Total tangible long-lived assets, net	17,588,951		17,588,951		19,606,131
Operating Segments [Member] | Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total tangible long-lived assets, net	$ 1,055,221		$ 1,055,221		$ 566,493