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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Schedule of Income (Loss) Before Income Taxes

Income (loss) before income taxes consists of:

		Year Ended December 31,
(in thousands)		2017				2016				2015
Domestic		$	(41,313	)		$	(13,930	)		$	(11,276	)
Foreign			(3,804	)			(4,040	)			(3,428	)
Income (loss) before taxes		$	(45,117	)		$	(17,970	)		$	(14,704	)

Income tax reconciliation

The provision for income taxes differs from the amount computed by applying the statutory rate as follows:

		Year Ended December 31,
(in thousands)		2017				2016				2015
Income taxes using U.S federal statutory rate		$	(15,340	)		$	(6,110	)		$	(4,999	)
Tax Cuts and Jobs Act			143				—				—
Nondeductible interest			6,912				—				—
Loss on extinguishment of debt			10,174
Loss of tax benefit of federal net operating loss    carryforwards			5,067				68,795				—
Loss of tax benefit of state  net operating loss    carryforwards			1,373				13,891				—
Loss of tax benefit of federal tax credit carryforwards			324				4,023				—
Amortization of gain on IP migration			767				767				767
State income taxes, net of federal benefit			(1,339	)			(2,576	)			380
Foreign rate differential			1,196				1,141				920
Valuation allowance			(1,423	)			(75,407	)			2,649
Derivative charge			(8,403	)			(4,345	)			(192	)
Stock option exercises and cancellations			841				53				674
Research and development costs			(295	)			(250	)			(199	)
Other			3				18				—
		$	—			$	—			$	—

Significant components of deferred tax assets

Significant components of the Company’s deferred tax assets are as follows:  

		Year Ended December 31,
(in thousands)		2017				2016				2015
Deferred tax assets:
Employee compensation accruals		$	292			$	1,386			$	1,279
Accrued liabilities			353				343				633
Research  tax credits			17				22				3,796
Other			34				55				66
Net operating losses			5,289				6,194				77,906
Total deferred tax assets			5,985				8,000				83,680
Deferred tax liabilities:
Beneficial conversion feature			—				906				—
Other			13				—				—
Total deferred tax liabilities			13				906				—
Valuation allowance			5,972				7,094				83,680
Net deferred tax assets		$	—			$	—			$	—

Summary of Change in Valuation Allowance

The change in valuation allowance is as follows:

(in thousands)		December 31, 2017				December 31, 2016
Beginning balance		$	7,094			$	83,680
Charged to costs and expenses			(1,423	)			(75,407	)
Charged to additional paid-in capital			—				(1,854	)
Charged to retained earnings			—				1,010
Charged to other comprehensive income			301				(335	)
Ending balance		$	5,972			$	7,094

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- References

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319

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- Definition

Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

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- Definition

Tabular disclosure of income before income tax between domestic and foreign jurisdictions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h)(1)(i))
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Tabular disclosure of valuation allowances to reduce deferred tax assets to net realizable value, including identification of the deferred tax asset more likely than not will not be fully realized and the corresponding amount of the valuation allowance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
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