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Commitments and Contingencies (Details)
$ in Thousands
Jul. 31, 2017
USD ($)
Year ended July 31,  
2018 $ 425
2019 202
Thereafter
Total 627
Real estate leases [Member]  
Year ended July 31,  
2018 202
2019 102
Thereafter
Total 304
Software as a Service ("SaaS") license [Member]  
Year ended July 31,  
2018 223
2019 100
Thereafter
Total $ 323