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Consolidated Statements of Operations and Comprehensive Loss - USD ($) | 12 Months Ended
--- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2016
Income Statement [Abstract] |  |  |
REVENUE | $ 16,142,321 | $ 31,407,709 | $ 158,333
Type of Revenue [Extensible List] | arwr:TechnologyLicensesCollaborativeResearchAndDevelopmentArrangementsResearchGrantsAndProductSalesMember | arwr:TechnologyLicensesCollaborativeResearchAndDevelopmentArrangementsResearchGrantsAndProductSalesMember | arwr:TechnologyLicensesCollaborativeResearchAndDevelopmentArrangementsResearchGrantsAndProductSalesMember
OPERATING EXPENSES |  |  |
Research and development | $ 52,968,505 | $ 50,904,466 | $ 62,117,818
General and administrative expenses | 19,110,051 | 17,499,152 | 23,594,888
Impairment expense |  |  | 2,050,817
Contingent consideration - fair value adjustments |  |  | (5,862,464)
TOTAL OPERATING EXPENSES | 72,078,556 | 68,403,618 | 81,901,059
OPERATING LOSS | (55,936,235) | (36,995,909) | (81,742,726)
OTHER INCOME (EXPENSE) |  |  |
Interest income (expense), net | 1,048,523 | 415,128 | 265,794
Change in value of derivatives | 432,141 | 890,362 | (301,022)
Other income (expense) | 7,493 | 1,312,524 | 57,352
TOTAL OTHER INCOME (EXPENSE) | 1,488,157 | 2,618,014 | 22,124
LOSS BEFORE INCOME TAXES | (54,448,078) | (34,377,895) | (81,720,602)
Provision for income taxes | (2,400) | (2,400) | (2,400)
NET LOSS | $ (54,450,478) | $ (34,380,295) | $ (81,723,002)
NET LOSS PER SHARE - BASIC & DILUTED | $ (0.65) | $ (0.47) | $ (1.34)
Weighted average shares outstanding - basic and diluted | 83,638,469 | 73,898,598 | 61,050,880
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX: |  |  |
Foreign Currency Translation Adjustments | $ (54,796) | $ 25,783 | $ 143,874
COMPREHENSIVE LOSS | $ (54,505,274) | $ (34,354,512) | $ (81,579,128)

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