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Leases (Tables)
9 Months Ended
Apr. 30, 2020
Leases [Abstract]  
Schedule of supplemental disclosures related to the Company's operating leases
   Three Months
Ended April 30,
2020
   Nine Months
Ended April 30,
2020
 
   (in thousands) 
Operating lease cost  $707   $2,130 
Short-term lease cost   66    198 
Total lease cost  $773   $2,328 
Cash paid for amounts included in the measurement of lease liabilities:          
Operating cash flows from operating leases  $687   $2,056 

 

   April 30,
2020
 
Weighted-average remaining lease term-operating leases   4.4 years 
Weighted-average discount rate-operating leases   3.12%
Schedule of aggregate operating lease liability
   April 30,
2020
 
   (in thousands) 
Operating lease liabilities included in "Other current liabilities"  $2,400 
Operating lease liabilities included in noncurrent liabilities   8,109 
Total  $10,509 
Schedule of future minimum maturities of operating lease liabilities
   Twelve-month period
ending
April 30,
 
   (in thousands) 
2021  $2,691 
2022   2,566 
2023   2,237 
2024   1,861 
2025   1,896 
Thereafter   41 
Total lease payments   11,292 
Less imputed interest   (783)
Total operating lease liabilities  $10,509