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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Calculation of net loss and number of shares used to compute basic and diluted earnings per share

The calculation of net loss and the number of shares used to compute basic and diluted earnings per share for the years ended December 31, 2015, 2014, and 2013 are as follows:

(in thousands, except share data)		2015				2014				2013
Net loss – basic		$	(14,704	)		$	(17,381	)		$	(30,324	)
Adjust for gain on warrant derivative liability			—				—				(1,835	)
Net loss - diluted			(14,704	)			(17,381	)			(32,159	)
Net loss per share – basic			(0.91	)			(1.84	)			(4.81	)
Weighted average shares outstanding – basic			16,161,687				9,452,050				6,300,614
Potentially dilutive warrant exercises			—				—				268,397
Weighted average shares outstanding – diluted			16,161,687				9,452,050				6,569,011
Net loss per share – diluted			(0.91	)			(1.84	)			(5.10	)

Shares excluded from the computation of diluted EPS

Shares excluded from the computation of diluted EPS:

		2015				2014				2013
Stock options			756,051				281,735				252,158
Unvested restricted shares			576,000				29,799				20,347
Warrants			18,059,000				850,138				589,500
Total			19,391,051				1,161,672				862,005

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- References

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- Definition

Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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