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Acquisitions (Tables) | 6 Months Ended
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Mar. 31, 2013
Roche Madison Inc. [Member] |
Summary of Estimated Fair Values at Date of Acquisition | The following table summarizes the estimated fair values at the date of acquisition:
Current assets |  | $ | 432,709 |
Property and equipment |  |  | 7,215,206 |
Intangible assets |  |  | 1,174,935 |
Other noncurrent assets |  |  | 6,264 |
Current liabilities |  |  | (414,122 | )
Noncurrent liabilities |  |  | (1,570,072 | )
Gain on purchase |  |  | (1,576,106 | )
Total purchase consideration |  | $ | 5,268,814 |
Purchase Consideration | The purchase consideration was composed of the following:
Promissory note due Roche |  | $ | 50,000 |
Contingent consideration |  |  | 84,935 |
Shares issued to Roche |  |  | 5,133,879 |
Total purchase consideration |  | $ | 5,268,814 |
Alvos acquisition [Member] |
Summary of Estimated Fair Values at Date of Acquisition | The following table summarizes the estimated fair values at the date of acquisition:
Current assets |  | $ | 29,332 |
In-process R&D |  |  | 2,172,387 |
Current liabilities |  |  | (113,033 | )
Total purchase consideration |  | $ | 2,088,686 |
Purchase Consideration | The purchase consideration was comprised of shares of Arrowhead Common Stock issued to the former shareholders of Alvos Therapeutics, Inc.
Shares issued |  |  | 315,457 |
Price per share |  | $ | 6.34 |
Share consideration |  | $ | 2,000,000 |
Contingent consideration |  |  | 88,686 |
Total purchase consideration |  | $ | 2,088,686 |

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- Definition Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 + Details
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