XML 59 R26.htm IDEA: XBRL DOCUMENT v2.4.0.6

Fair Value Measurements & Derivative Instruments (Tables)

6 Months Ended

Mar. 31, 2013

Fair Value Measurements for Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table summarizes fair value measurements at March 31, 2013 and September 30, 2012 for assets and liabilities measured at fair value on a recurring basis:

March 31, 2013:

		Level 1				Level 2				Level 3				Total
Cash and cash equivalents		$	3,313,310			$	—			$	—			$	3,313,310
Marketable securities		$	—			$	—			$	—			$	—
Derivative assets		$	—			$	—			$	—			$	—
Derivative liabilities		$	—			$	—			$	2,535,910			$	2,535,910
Contingent consideration		$	—			$	—			$	173,621			$	173,621

September 30, 2012:

		Level 1				Level 2				Level 3				Total
Cash and cash equivalents		$	3,377,288			$	—			$	—			$	3,377,288
Marketable securities		$	106,500			$	—			$	—			$	106,500
Derivative assets		$	—			$	—			$	250,250			$	250,250
Derivative liabilities		$	—			$	—			$	647,213			$	647,213
Contingent consideration		$	—			$	—			$	173,621			$	173,621

Assumptions Used in Valuing Derivative Asset

The assumptions used in valuing the derivative asset were as follows:

		March 31, 2013				September 30, 2012
Risk free interest rate			NA				0.23%
Expected life			0 Years				1.3 Years
Dividend yield			none				none
Volatility			72%				72%

Reconciliation of Derivative Asset

The following is a reconciliation of the derivative asset:

Value at September 30, 2011			161,125
Receipt of instruments			—
Increase in value			89,125
Net settlements			—
Value at September 30, 2012			250,250
Receipt of instruments			—
Change in value			(250,250	)
Net settlements			—
Value at March 31, 2013		$	—

Change in Fair Value of Contingent Consideration Obligations

There were no changes in contingent consideration fair value.

Value at September 30, 2011		$	—
Purchase price contingent consideration			173,621
Contingent consideration payments			—
Change in fair value of contingent consideration			—
Value at September 30, 2012		$	173,621
Purchase price contingent consideration			—
Contingent consideration payments			—
Change in fair value of contingent consideration			—
Value at March 31, 2013		$	173,621

Warrants [Member]

Assumptions Used in Valuing Derivative Liabilities

The assumptions used in valuing the derivative liabilities were as follows:

2010 Warrants		March 31, 2013				September 30, 2012
Risk free interest rate			0.36	%			0.31	%
Expected life			2.7 Years				3.2 Years
Dividend yield			none				none
Volatility			69	%			100	%

2012 Warrants		March 31, 2013				September 30, 2012
Risk free interest rate			0.77	%			N/A
Expected life			4.7 Years				N/A
Dividend yield			none				N/A
Volatility			69	%			N/A

2013 Warrants		March 31, 2013				September 30, 2012
Risk free interest rate			0.77	%			N/A
Expected life			4.8 Years				N/A
Dividend yield			none				N/A
Volatility			69	%			N/A

Reconciliation of Derivative Liability

The following is a reconciliation of the derivative liability related to these warrants:

Value at September 30, 2011		$	907,233
Issuance of instruments			—
Change in value			(281,038	)
Net settlements			—
Value at September 30, 2012		$	626,195
Issuance of instruments			1,137,896
Issuance of instruments			1,015,923
Change in value			(244,801	)
Net settlements			—
Value at March 31, 2013		$	2,535,213

Exchange rights [Member]

Assumptions Used in Valuing Derivative Liabilities

The assumptions used in valuing the derivative liability were as follows:

		March 31, 2013				September 30, 2012
Risk free interest rate			0.72	%			0.62	%
Expected life			4.8 Years				5.3 Years
Dividend yield			none				none
Volatility			69	%			100	%

Reconciliation of Derivative Liability

The following is a reconciliation of the derivative liability related to these exchange rights:

Value at September 30, 2010		$	—
Issuance of instruments			100,650
Change in value			(69,758	)
Value at September 30, 2011		$	30,892
Issuance of instruments			—
Change in value			(20,520	)
Net settlements			—
Value at September 30, 2012		$	10,372
Issuance of instruments			—
Change in value			(9,675	)
Net settlements			—
Value at March 31, 2013		$	697

X

- Definition

Fair value assumptions and methodology for assets.

+ References

No definition available.

+ Details

Name:	arwr_FairValueAssumptionsAndMethodologyForAssetsTableTextBlock
Namespace Prefix:	arwr_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Fair value assumptions and methodology for liabilities.

+ References

No definition available.

+ Details

Name:	arwr_FairValueAssumptionsAndMethodologyForLiabilitiesTableTextBlock
Namespace Prefix:	arwr_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19279-110258



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-Subparagraph c

-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.

+ Details

Name:	us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19279-110258



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-Subparagraph c

-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.

+ Details

Name:	us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of contingent payment arrangements including the terms that will result in payment and the accounting treatment that will be followed if such contingencies occur, including the potential impact on earnings per share if contingencies are to be settled in common stock of the entity. The description also may include the period over which amounts are expected to be paid, and changes in the amount since the previous reporting period. This also includes contingent options and commitments.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionContingentConsiderationTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19190-110258

+ Details

Name:	us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration