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Revenue (Tables)
12 Months Ended
Jun. 30, 2021
Revenue from Contract with Customer [Abstract]  
Net revenue by product lines
          
   Years Ended June 30, 
   2021   2020 
   (In thousands) 
IoT  $59,167   $49,911 
REM   11,843    9,228 
Other   467    739 
   $71,477   $59,878 
Net revenue by geographic region
          
   Years Ended June 30, 
   2021   2020 
   (In thousands) 
Americas  $38,638   $33,279 
EMEA   17,186    15,588 
APJ   15,653    11,011 
   $71,477   $59,878 
Schedule of percentage total net revenue
          
   Year Ended June 30, 
   2021   2020 
         
Product revenues   91%    96% 
Service revenues   9%    4% 
Changes in deferred revenue
     
Balance, July 1, 2020  $824 
New performance obligations   778 
Recognition of revenue as a result of satisfying performance obligations   (511)
Balance, June 30, 2021  $1,091 
Less: non-current portion of deferred revenue   (241)
Current portion, June 30, 2021  $850