Income Taxes (Tables)

9 Months Ended

12 Months Ended

Jan. 31, 2023

Apr. 30, 2022

Income Tax Disclosure [Abstract]

Summary of Significant Portions of Deferred Tax Assets and Liabilities

The tax effects of temporary differences and carry-forwards that give rise to significant portions of the deferred tax assets and liabilities are presented below:


		January 31,				April 30,
		2023				2022
Deferred tax assets (liabilities):
Net operating loss carryforwards		$	9,447,212			$	8,387,881
Start-up costs			960,269				1,036,080
Stock option and warrant payments			441,977				423,624
Accumulated depreciation			(2,839	)			(2,668	)
Research and development credits			255,600				255,600
Research and development warrants			21,488				21,488

Total deferred tax assets, net			11,123,707				10,122,005
Valuation Allowance			(11,123,707	)			(10,122,005	)

Net Deferred Tax Assets		$	—			$	—

The tax effects of temporary differences and carry-forwards that give rise to significant portions of the deferred tax assets and liabilities are presented below:


		As of April 30,
		2022				2021
Deferred tax assets (liabilities):
Net operating loss carryforwards		$	8,387,881			$	7,215,961
Start-up costs			1,036,080				1,137,161
Stock option and warrant payments			423,624				396,631
Accumulated depreciation			(2,668	)			(2,440	)
Research and development credits			255,600				255,600
Research and development warrants			21,488				21,488

Total deferred tax assets, net			10,122,005				9,024,401
Valuation Allowance			(10,122,005	)			(9,024,401	)

Net Deferred Tax Assets			—				—