XML 28 R18.htm IDEA: XBRL DOCUMENT v3.23.3
Summary of Revenue by Product (Details) - USD ($)
3 Months Ended
Oct. 31, 2023
Oct. 31, 2022
Product Information [Line Items]    
Revenue $ 718,000 $ 467,000
PURE Hard Surface [Member]    
Product Information [Line Items]    
Revenue 718,000 446,000
SIL VERION [Member]    
Product Information [Line Items]    
Revenue $ 21,000