Annual report pursuant to Section 13 and 15(d)

Revenue Recognition from Contracts with Customers (Details)

v3.23.2
Revenue Recognition from Contracts with Customers (Details) - USD ($)
12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Revenue Recognition from Contracts with Customers (Details) [Line Items]    
Performance obligations $ 40,000,000  
Filter Product Sales [Member]    
Revenue Recognition from Contracts with Customers (Details) [Line Items]    
Opening contract liability balance   $ 300
Non-recurring Engineering Business [Member]    
Revenue Recognition from Contracts with Customers (Details) [Line Items]    
Opening contract asset balance $ 900,000