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Warranty Reserve (Tables)
3 Months Ended
Sep. 30, 2021
Guarantees and Product Warranties [Abstract]  
Schedule of Warranty Reserve
          
   Three Months Ended   Year Ended 
   September 30,   June 30, 
   2021   2021 
   (In thousands) 
Beginning balance  $197   $181 
Warranty reserve assumed from acquisition of TN Companies   483     
Charged to cost of revenue   101    226 
Usage   (111)   (210)
Ending balance  $670   $197