XML 46 R34.htm IDEA: XBRL DOCUMENT
v3.24.3

Fair Value Measurements (Company's Fair Value Measurements Using Level 3 Inputs) (Details) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2024 Y | Dec. 31, 2023 Y
Discount rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt instrument, measurement input, for the period | 0.1950 | 0.2101
Probabilities of settlement scenarios | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt instrument, measurement input, for the period | 0 | 0
Probabilities of settlement scenarios | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt instrument, measurement input, for the period | 0.75 | 0.75
Volatility |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt instrument, measurement input, for the period | 0.932 | 1.203
Expected term | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt instrument, measurement input, for the period | 0.26 | 0.16
Expected term | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt instrument, measurement input, for the period | 0.28 | 1.04
Risk-free rate | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt instrument, measurement input, for the period | 0.0458 | 0.0466
Risk-free rate | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt instrument, measurement input, for the period | 0.0461 | 0.0536

X
- Definition Value of input used to measure debt instruments, including, but not limited to, convertible and non-convertible debt for the period. + References No definition available. + Details
Name: | armp_DebtInstrumentMeasurementInputForPeriod
Namespace Prefix: | armp_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 103 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-103 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputDiscountRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=armp_ProbabilitiesOfSettlementScenariosMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputOptionVolatilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExpectedTermMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputRiskFreeInterestRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |