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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Represents about award line items.

No definition available.

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Data Type:	xbrli:stringItemType
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The carrying amount as of the balance sheet date of award receivable.

No definition available.

Name:	armp_AwardReceivable
Namespace Prefix:	armp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The aggregate benefit incurred during the reporting period as a result of research and development activities.

No definition available.

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Namespace Prefix:	armp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The threshold amount of development award under the award agreement.

No definition available.

Name:	armp_ThresholdDevelopmentAward
Namespace Prefix:	armp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of revenue that is not accounted for under Topic 606.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(1))
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

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