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Warranty Reserve (Tables)
9 Months Ended
Mar. 31, 2022
Guarantees and Product Warranties [Abstract]  
Schedule of changes in warranty liability

Changes in the Company’s warranty reserve were as follows:

 

   Nine Months Ended
March 31, 2022
   Fiscal Year Ended
June 30, 2021
 
Warranty reserve, beginning  $940,000   $740,000 
Accrual for products sold   122,000    354,000 
Expenditures and costs incurred for warranty claims   (124,000)   (154,000)
Warranty reserve, ending  $938,000   $940,000