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Summary of Significant Accounting Policies (Details) - Schedule of computation of diluted net loss per share - shares | 12 Months Ended
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Sep. 30, 2022 | Sep. 30, 2021
Schedule Of Computation Of Diluted Net Loss Per Share Abstract |  |
Warrants | 7,103,344 | 7,503,808
Stock options | 1,239,915 | 1,122,560
Restricted stock units | 414,430 | 11,384
Unissued vested restricted stock units | 7,316 | 1,148

X
- Definition This relates to restricted stock units not included in basic EPS. + References No definition available. + Details
Name: | nmtc_RestrictedStockUnit
Namespace Prefix: | nmtc_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | nmtc_ScheduleOfComputationOfDilutedNetLossPerShareAbstract
Namespace Prefix: | nmtc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This relates to stock options not included in basic EPS. + References No definition available. + Details
Name: | nmtc_StockOptions
Namespace Prefix: | nmtc_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition This relates to restricted stock awards not included in basic EPS. + References No definition available. + Details
Name: | nmtc_UnissuedVestedRestrictedStockUnits
Namespace Prefix: | nmtc_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition This relates to warrants not included in basic EPS. + References No definition available. + Details
Name: | nmtc_Warrantshares
Namespace Prefix: | nmtc_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration