XML 22 R37.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Stockholders' Equity (Details) | Jun. 30, 2012
--- | ---
Summary of information about warrants |
Number of Warrants | 2,427,993
Warrant 1 [Member] |
Summary of information about warrants |
Exercise prices | 70.60
Number of Warrants | 94,897
Remaining life of warrant | 4 years 10 months 24 days
Warrant 2 [Member] |
Summary of information about warrants |
Exercise prices | 20.00
Number of Warrants | 386,400
Remaining life of warrant | 1 year 1 month 6 days
Warrant 3 [Member] |
Summary of information about warrants |
Exercise prices | 5.00
Number of Warrants | 1,155,023
Remaining life of warrant | 2 years 4 months 24 days
Warrant 4 [Member] |
Summary of information about warrants |
Exercise prices | 5.09
Number of Warrants | 461,024
Remaining life of warrant | 2 years 4 months 24 days
Warrant 5 [Member] |
Summary of information about warrants |
Exercise prices | 3.70
Number of Warrants | 329,649
Remaining life of warrant | 3 years 6 months
Warrant 6 [Member] |
Summary of information about warrants |
Exercise prices | 4.16
Number of Warrants | 1,000
Remaining life of warrant | 4 years 6 months

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: | instant

X
- Definition The exercise price of each class 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=6881521&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 -Subparagraph 4 -Article 4 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights
Namespace Prefix: | us-gaap_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate amount of each class of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: 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=6881521&loc=d3e23780-122690 Reference 3: 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

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