Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition (Details) - Schedule of product revenue by geographical

v3.20.2
Revenue Recognition (Details) - Schedule of product revenue by geographical - Product Revenue [Member] - USD ($)
$ in Thousands
3 Months Ended
Oct. 31, 2020
Oct. 31, 2019
Revenue Recognition (Details) - Schedule of product revenue by geographical [Line Items]    
Products revenue $ 7,432 $ 7,427
United States [Member]    
Revenue Recognition (Details) - Schedule of product revenue by geographical [Line Items]    
Products revenue 3,878 4,447
Europe [Member]    
Revenue Recognition (Details) - Schedule of product revenue by geographical [Line Items]    
Products revenue 2,382 1,865
Rest of the world [Member]    
Revenue Recognition (Details) - Schedule of product revenue by geographical [Line Items]    
Products revenue $ 1,172 $ 1,115