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9. STOCK COMPENSATION RSU (Details) - $ / shares | 12 Months Ended
--- | ---
Sep. 30, 2017 | Sep. 30, 2016
Weighted Average Grant Date Fair Value, Ending | $ 4.91 | $ 36.96
Restricted Stock Awards [Member] |  |
Number of unvested shares, Beginning | 604,000 | 604,000
Vested shares | (136,000) | 0
Number of unvested shares, Ending | 468,000 | 604,000
Weighted Average Grant Date Fair Value, Ending | $ 13.75 | $ 13.75

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- Definition Custom Element. + References No definition available. + Details
Name: | CVM_NumberOfUnvestedSharesBeginning
Namespace Prefix: | CVM_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition Custom Element. + References No definition available. + Details
Name: | CVM_NumberOfUnvestedSharesEnding
Namespace Prefix: | CVM_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition Custom Element. + References No definition available. + Details
Name: | CVM_VestedShares
Namespace Prefix: | CVM_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition Custom Element. + References No definition available. + Details
Name: | CVM_WeightedAverageGrantDateFairValueEnding
Namespace Prefix: | CVM_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_AwardTypeAxis=CVM_RestrictedStockAwardsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |