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Warranty Reserve (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Sep. 30, 2021
Jun. 30, 2021
Guarantees and Product Warranties [Abstract]    
Beginning balance $ 197 $ 181
Warranty reserve assumed from acquisition of TN Companies 483 0
Charged to cost of revenues 101 226
Usage (111) (210)
Ending balance $ 670 $ 197