Significant Accounting Policies (Tables)

6 Months Ended

Jan. 31, 2024

Accounting Policies [Abstract]

Summary of Revenue by Product

A summary of our revenue by product type for the six months ended January 31, 2024 and 2023 is as follows:

	January 31,
	2024		2023
PURE Hard Surface	$	1,036,000	$	778,000
SILVÉRION		7,000		85,000
	$	1,043,000	$	863,000

A summary of our revenue by product type for the three months ended January 31, 2024 and 2023 is as follows:

	January 31,
	2024		2023
PURE Hard Surface	$	325,000	$	332,000
SILVÉRION		—		64,000
	$	325,000	$	396,000

Schedule of Anti-dilutive Securities Excluded from Computation of earnings Per Share

	January 31,
	2024		2023
Common stock options		8,355,625		7,885,625
Restricted stock units		712,500		1,212,500
Shares issuable upon the conversion of debt		12,413,333		—
Total		21,481,458		9,098,125

Schedule of Inventories

Inventories consist of the following:

	January 31, 2024		July 31, 2023
Raw materials	$	18,000	$	11,000
Finished goods		56,000		77,000
	$	74,000	$	88,000