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Consolidated Statements of Operations (USD $) | 12 Months Ended | 113 Months Ended
--- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012
REVENUE | $ 146,875 | $ 296,139 | $ 4,138,834
OPERATING EXPENSES |  |  |
Salaries and payroll-related costs | 6,414,921 | 1,408,366 | 26,392,130
General and administrative expenses | 6,439,323 | 3,795,380 | 31,353,215
Research and development | 5,391,463 | 3,277,760 | 42,618,748
Stock-based compensation | 1,241,404 | 1,376,921 | 13,581,468
Depreciation and amortization | 1,748,975 | 267,978 | 7,409,286
TOTAL OPERATING EXPENSES | 21,236,086 | 10,126,405 | 121,354,847
OPERATING LOSS | (21,089,211) | (9,830,266) | (117,216,013)
OTHER INCOME (EXPENSE) |  |  |
Equity in income (loss) of unconsolidated affiliates | (240,154) | (163,180) | (963,407)
Impairment of investment in unconsolidated affiliates | (1,642,775) |  | (1,642,775)
Gain on purchase of Roche Madison | 1,576,107 |  | 1,576,107
Loss on sale of property and equipment, net | (1,079,377) |  | (1,206,465)
Realized and unrealized gain (loss) on marketable securities | (58,091) | (261,219) | 62,954
Interest income (expense), net | 35,966 | 86,530 | 2,750,444
Change in value of derivatives | 386,892 | 1,133,127 | 3,281,404
Gain on sale of stock in subsidiary |  |  | 2,292,800
Other income |  | 250,000 | 250,000
TOTAL OTHER INCOME (EXPENSE) | (1,021,432) | 1,045,258 | 6,401,062
LOSS FROM CONTINUING OPERATIONS BEFORE INCOME TAXES | (22,110,643) | (8,785,008) | (110,814,951)
Provision for income taxes |  |  |
LOSS FROM CONTINUING OPERATIONS | (22,110,643) | (8,785,008) | (110,814,951)
Income (loss) from discontinued operations | (80) | 1,373,396 | (47,546,642)
Gain on disposal of discontinued operations |  | 3,919,213 | 4,708,588
NET INCOME (LOSS) FROM DISCONTINUED OPERATIONS | (80) | 5,292,609 | (42,838,054)
NET LOSS | (22,110,723) | (3,492,399) | (153,653,005)
Net (income) loss attributable to noncontrolling interests | 984,795 | 363,514 | 18,819,285
NET LOSS ATTRIBUTABLE TO ARROWHEAD | $ (21,125,928) | $ (3,128,885) | $ (134,833,720)
Earnings per share-basic and diluted: |  |  |
Loss from continuing operations attributable to Arrowhead common shareholders | $ (1.90) | $ (1.18) |
Loss from discontinued operations attributable to Arrowhead common shareholders |  | $ 0.74 |
Net loss attributable to Arrowhead shareholders | $ (1.90) | $ (0.44) |
Weighted average shares outstanding | 11,129,766 | 7,181,121 |

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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -Subparagraph a -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 260 -SubTopic 10 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1448-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 8 -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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 07-4 -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 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 171 -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 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Weighted-Average Number of Common Shares Outstanding -URI http://asc.fasb.org/extlink&oid=6528421 + Details
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