SIGNIFICANT ACCOUNTING POLICIES (Tables)

3 Months Ended

Aug. 31, 2025

Accounting Policies [Abstract]

SCHEDULE OF NET INVENTORIES

Net inventories are comprised of the following:

	August 31, 2025			May 31, 2025
Raw materials	$	976,000		$	1,071,000
Work in progress		816,000			743,000
Finished products		159,000			147,000
Total gross inventory		1,951,000			1,961,000
Inventory reserves		(478,000	)		(471,000	)
Net inventory	$	1,473,000		$	1,490,000

SUMMARY OF OPTIONS ACTIVITY

The following summary presents the options granted, exercised, expired, canceled and outstanding for the three months ended August 31, 2025:

	Option Shares			Weighted Average Exercise Price
Options Outstanding at May 31, 2025		413,866		$	19.29
Cancelled or expired		(720	)		12.70
Options Outstanding at August 31, 2025		413,146		$	19.31

SCHEDULE OF RSUs ACTIVITY

The following summary presents the restricted stock awards granted, vested, forfeited and outstanding for the three months ended August 31, 2025:

	Restricted Stock Awards			Weighted Average Grant Date Fair Value
Unvested Restricted Stock Awards at May 31, 2025		97,500		$	2.51
Granted		10,000			3.19
Vested		(10,625	)		2.51
Unvested Restricted Stock Awards at August 31, 2025		96,875		$	2.58

SCHEDULE OF DISAGGREGATION REVENUE

The following is a breakdown of revenues according to markets to which the products are sold:

	Three Months Ended August 31,
	2025		2024
Clinical lab	$	1,024,000	$	1,278,000
Contract manufacturing		192,000		339,000
Over-the-counter		161,000		187,000
Physician’s office		3,000		3,000
Total	$	1,380,000	$	1,807,000

SCHEDULE OF SEGMENT REPORTING

Our reportable segment product sales, net and net income (loss) during the three months ended August 31, 2025 and 2024 consisted of the following:

	For the Three Months Ended August 31,
	2025			2024
Net sales	$	1,380,000		$	1,807,000
Cost of sales		(956,000	)		(1,518,000	)
Gross profit		424,000			289,000
Operating expenses:
Sales and marketing expense		1,330,000			1,360,000
General and administrative expense
Research and development expense		212,000			297,000
Total operating expense		1,542,000			1,657,000
Loss from operations		(1,118,000	)		(1,368,000	)
Other income:
Dividend, interest, and other income		1,123,000			56,000
Total other income		1,123,000			56,000
Loss before income taxes		5,000			(1,312,000	)
Provision for income taxes		(3,000	)		(4,000	)
Net loss	$	2,000		$	(1,316,000	)