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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Jun. 30, 2023
Accounting Policies [Abstract]  
Schedule of Allowance for Doubtful Accounts Activity
The allowance for doubtful accounts activity was as follows (in thousands):
 
 Year ended June 30,
 202320222021
Beginning balance$52 $47 $203 
Charged to (released from) expenses40 5 7 
Bad debt write-offs— — (163)
Ending balance$92 $52 $47 
Schedule of Estimated Useful Lives of Property and Equipment
The Company computes depreciation or amortization using the straight-line method over estimated useful lives, as follows:
 Estimated Useful Life
Testing equipment
3 to 5 years
Computer and other equipment
3 to 5 years
Furniture and fixtures
3 to 5 years
Software
up to 3 years
Corporate aircraft15 years
Leasehold improvementsshorter of lease term or useful life