Significant Accounting Policies (Tables)

9 Months Ended

Jan. 31, 2023

Accounting Policies [Abstract]

Schedule of Cash and Cash Equivalents

	January 31, 2023		April 30, 2022
Cash and cash equivalents	$	1,603,501	$	6,482,750
Restricted cash:
Letter of credit for level of Title IV funding at USU	—		9,872
Collateral for corporate credit card at AGI	250,000		250,000
Letters of credit for operating leases at AU and USU	1,173,525		1,173,525
Collateral for surety bond at AU	3,500,000		5,000,000
Total restricted cash	4,923,525		6,433,397
Total cash and cash equivalents and restricted cash as shown on the statement of cash flows	$	6,527,026	$	12,916,147

Schedule of Restricted Cash

	January 31, 2023		April 30, 2022
Cash and cash equivalents	$	1,603,501	$	6,482,750
Restricted cash:
Letter of credit for level of Title IV funding at USU	—		9,872
Collateral for corporate credit card at AGI	250,000		250,000
Letters of credit for operating leases at AU and USU	1,173,525		1,173,525
Collateral for surety bond at AU	3,500,000		5,000,000
Total restricted cash	4,923,525		6,433,397
Total cash and cash equivalents and restricted cash as shown on the statement of cash flows	$	6,527,026	$	12,916,147

Summary of Shares Not Included in Computation of Diluted Net Loss Per Share

Summarized below are shares not included in the computation of diluted net loss per share because the effects would have been anti-dilutive. The options, warrants, RSUs, unvested restricted stock and convertible notes are considered to be common stock equivalents and are only included in the calculation of diluted earnings per share of common stock when their effect is dilutive. See Note 6. Stockholders’ Equity.

	January 31, 2023	April 30, 2022
Options to purchase common shares	614,458	860,182
Restricted stock units	—	—
Warrants to purchase common shares	425,000	649,174
Unvested restricted stock	523,056	929,928
Convertible Notes	10,000,000	10,000,000