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Warranty Reserve (Tables)
6 Months Ended
Dec. 31, 2021
Guarantees and Product Warranties [Abstract]  
Schedule of Warranty Reserve
          
   Six Months Ended  Year Ended
   December 31,  June 30,
   2021  2021
   (In thousands)
Beginning balance  $197   $181 
Warranty reserve assumed from acquisition of TN Companies   483     
Charged to cost of revenue   169    226 
Usage   (214)   (210)
Ending balance  $635   $197