Basis of Presentation (Details) - Third Party Payer And Health Maintenance Organizations [Member] - Clinical Services [Member] |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
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Jan. 31, 2019 |
Jan. 31, 2018 |
Jan. 31, 2019 |
Jan. 31, 2018 |
Jul. 31, 2018 |
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Sales Revenue, Net [Member] | |||||
Basis of Presentation (Details) [Line Items] | |||||
Concentration Risk, Percentage | 42.00% | 38.00% | 42.00% | 39.00% | |
Accounts Receivable [Member] | |||||
Basis of Presentation (Details) [Line Items] | |||||
Concentration Risk, Percentage | 24.00% | 29.00% |
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- References No definition available.
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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