Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Details)

v3.10.0.1
Basis of Presentation (Details) - Third Party Payer And Health Maintenance Organizations [Member] - Clinical Services [Member]
3 Months Ended
Oct. 31, 2018
Oct. 31, 2017
Sales Revenue, Net [Member]    
Basis of Presentation (Details) [Line Items]    
Concentration Risk, Percentage 41.00% 40.00%
Accounts Receivable [Member]    
Basis of Presentation (Details) [Line Items]    
Concentration Risk, Percentage 37.00% 47.00%