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Business Segment Information (Tables)
9 Months Ended
Apr. 30, 2019
Business Segment Information [Abstract]  
Schedule of operating results of business segments
(in thousands) Telecom &
Payment
Services
  net2phone  All Other  Corporate  Total 
Three Months Ended April 30, 2019               
Revenues $328,838  $12,417  $  $  $341,255 
Income (loss) from operations  6,577   (1,267)     (2,561)  2,749 
Severance  553            553 
Other operating expense           (120)  (120)
                     
Three Months Ended April 30, 2018                    
Revenues $356,362  $9,086  $(38) $  $365,410 
Income (loss) from operations  3,143   (769)  (1,138)  (2,929)  (1,693)
Severance  3,592         66   3,658 
Other operating expense           (345)  (345)
                     
Nine Months Ended April 30, 2019                    
Revenues $1,018,637  $34,407  $  $  $1,053,044 
Income (loss) from operations  18,121   (4,663)     (7,884)  5,574 
Severance  553            553 
Other operating income (expense), net  215   25      (645)  (405)
                     
Nine Months Ended April 30, 2018                    
Revenues $1,128,510  $25,172  $1,166  $  $1,154,848 
Income (loss) from operations  12,105   (2,233)  (2,600)  (9,362)  (2,090)
Severance  4,197         96   4,293 
Other operating expense           (1,970)  (1,970)