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Assets and Liabilities Measured at Fair Value (Tables)

12 Months Ended

Dec. 31, 2013

Assets and Liabilities Measured at Fair Value [Abstract]

Assets and Liabilities Measured at Fair Value on a Recurring Basis

The table below presents the Company’s assets and liabilities measured at fair value on a recurring basis as of December 31, 2013 and 2012, aggregated by the level in the fair value hierarchy within which those measurements fall.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

		Level 1							Level 2									Level 3							Balance at December 31,
(in thousands)		2013			2012				2013				2012					2013				2012			2013				2012
Assets
Money market funds		$	1,956			$	1,967				—				—				—				—			$	1,956			$	1,967
Liabilities
Derivative instrument liabilities			—				—				—				—			$	2,310			$	3,427			$	2,310			$	3,427

Fair Value Measurements Using Significant Unobservable Inputs

Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
(in thousands)		Derivative
Balance at December 31, 2010		$	18,005
Total change in the fair value of the liability included in earnings			(15,566	)
Balance at December 31, 2011		$	2,439
Total change in the fair value of the liability included in earnings			(2,159	)
Fair value of warrants issued			4,055
Fair value of warrants exercised or expired			(908	)
Balance at December 31, 2012		$	3,427
Total change in the fair value of the liability included in earnings			(2,756	)
Fair value of warrants issued and exercised			1,639
Balance at December 31, 2013		$	2,310

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- 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.

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- 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

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