XML 67 R55.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

Grant and Awards (Narrative) (Details) - USD ($) |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 29, 2022 | Jun. 15, 2020 | Mar. 13, 2020 | Jul. 31, 2024 | Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Mar. 31, 2024 | Dec. 31, 2023
MTEC Grant [Member] |  |  |  |  |  |  |  |  |  |
Government Assistance [Line Items] |  |  |  |  |  |  |  |  |  |
Revenue from grants | $ 16,300,000 | $ 15,000,000.0 |  |  |  |  |  |  | $ 16,300,000 |
Government assistance, transaction duration |  | 3 years |  |  |  |  |  |  |  |
Increase in expected revenue from grants | $ 1,300,000 |  |  |  |  |  |  |  |  |
Grant revenue from the MTEC Agreement |  |  |  |  | $ 0 | $ 1,000,000.0 | $ 1,000,000.0 | $ 1,800,000 |  |
Grants receivable |  |  |  |  | 500,000 |  | 500,000 |  |  | $ 1,500,000
MTEC Grant [Member] | Subsequent Event |  |  |  |  |  |  |  |  |  |
Government Assistance [Line Items] |  |  |  |  |  |  |  |  |  |
Revenue from grants |  |  |  | $ 21,600,000 |  |  |  |  |  |
Increase in expected revenue from grants |  |  |  | $ 5,300,000 |  |  |  |  |  |
CFF Therapeutics Development Award [Member] |  |  |  |  |  |  |  |  |  |
Government Assistance [Line Items] |  |  |  |  |  |  |  |  |  |
Grant revenue from the MTEC Agreement |  |  |  |  | $ 0 | $ 0 | $ 0 | $ 0 |  |
Proceeds from governments grants |  |  | $ 1,000,000.0 |  |  |  |  |  |  |
Award agreement interruption period |  |  | 360 days |  |  |  |  |  |  |
CFF Therapeutics Development Award [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |
Government Assistance [Line Items] |  |  |  |  |  |  |  |  |  |
Revenue from grants |  |  | $ 5,000,000.0 |  |  |  |  |  |  |

X
- Definition Represents the period for which the company ceases to use commercially reasonable efforts directed to the development of the product. + References No definition available. + Details
Name: | armp_AwardAgreementInterruptionPeriod
Namespace Prefix: | armp_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of cash inflow associated with government grants. + References No definition available. + Details
Name: | armp_ProceedsFromGovernmentGrants
Namespace Prefix: | armp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of increase (decrease) in income from government assistance. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 832 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483507/832-10-50-3 + Details
Name: | us-gaap_GovernmentAssistanceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of increase in asset from government assistance, classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 832 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483507/832-10-50-3 + Details
Name: | us-gaap_GovernmentAssistanceAssetIncreaseCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of government assistance awarded that comprises amount received, receivable, and to be received unless condition for government assistance is not met. Includes, but is not limited to, government grant, assistance, incentive, award, subsidy, and loan. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 832 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483507/832-10-50-3 + Details
Name: | us-gaap_GovernmentAssistanceAwardAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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/disclosureRef -Topic 832 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483507/832-10-50-3 + Details
Name: | us-gaap_GovernmentAssistanceLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Duration of government assistance transaction, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 832 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483507/832-10-50-4 + Details
Name: | us-gaap_GovernmentAssistanceTransactionDuration
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying amount as of the balance sheet date of amounts due under the terms of governmental, corporate, or foundation grants. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)(a)(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_GrantsReceivableCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_GovernmentAssistanceTypeAxis=armp_MedicalTechnologyEnterpriseConsortiumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GovernmentAssistanceTypeAxis=armp_AwardAgreementWithCysticFibrosisFoundationMember
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: |