XML 59 R40.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Stockholders' Equity - Summary of Information About Warrants (Detail) (USD $) | 12 Months Ended
--- | ---
Sep. 30, 2014
Class Of Warrant Or Right [Line Items] |
Exercise prices | $ 1.83
Number of Warrants | 1,490,589
Warrant 1 |
Class Of Warrant Or Right [Line Items] |
Exercise prices | $ 70.60
Number of Warrants | 94,897
Remaining Life in Years | 2 years 7 months 6 days
Warrant 2 |
Class Of Warrant Or Right [Line Items] |
Exercise prices | $ 5.00
Number of Warrants | 413,825
Remaining Life in Years | 10 months 24 days
Warrant 3 |
Class Of Warrant Or Right [Line Items] |
Exercise prices | $ 5.09
Number of Warrants | 269,912
Remaining Life in Years | 2 months 12 days
Warrant 4 |
Class Of Warrant Or Right [Line Items] |
Exercise prices | $ 1.38
Number of Warrants | 24,324
Remaining Life in Years | 1 year 2 months 12 days
Warrant 5 |
Class Of Warrant Or Right [Line Items] |
Exercise prices | $ 4.16
Number of Warrants | 1,000
Remaining Life in Years | 2 years 2 months 12 days
Warrant 6 |
Class Of Warrant Or Right [Line Items] |
Exercise prices | $ 3.25
Number of Warrants | 334,347
Remaining Life in Years | 1 year 10 months 24 days
Warrant 7 |
Class Of Warrant Or Right [Line Items] |
Exercise prices | $ 2.12
Number of Warrants | 75,000
Remaining Life in Years | 3 years 2 months 12 days
Warrant 8 |
Class Of Warrant Or Right [Line Items] |
Exercise prices | $ 1.83
Number of Warrants | 277,284
Remaining Life in Years | 3 years 2 months 12 days

X
- Definition Remaining life of warrant. + References No definition available. + Details
Name: | arwr_RemainingLifeOfWarrant
Namespace Prefix: | arwr_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(4)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph i -Article 4 + Details
Name: | us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant