v3.22.2.2
ACCRUED EXPENSES (Details) - USD ($)
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2020
ACCRUED EXPENSES      
Employee compensation $ 519,000 $ 485,000  
Accrued warranty 55,000 29,000 $ 65,000
Others 81,000 106,000  
Total $ 655,000 $ 620,000