Accounts Receivable (Tables)

12 Months Ended

Apr. 30, 2021

Receivables [Abstract]

Accounts Receivable Balance

Accounts receivable consisted of the following at April 30, 2021 and 2020:

	April 30,
	2021		2020
Accounts receivable	$	30,264,393	$	22,786,847
Long-term contractual accounts receivable	(10,249,833)		(6,701,136)
	20,014,560		16,085,711
Less: Allowance for doubtful accounts	(3,289,816)		(1,758,920)
Accounts receivable, net	$	16,724,744	$	14,326,791