v3.8.0.1

Income Taxes - Reconciliation of Federal Statutory Rate (Details)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Federal statutory income tax rate to loss before income taxes
Income tax benefit at the federal statutory rate	(34.00%)	(34.00%)	(34.00%)
State income tax benefit, net of federal tax benefit	(6.00%)	(6.00%)	(6.00%)
Statutory rate differential attributable to foreign operations	29.00%	(0.00%)	(0.00%)
Change in fair value of warrant liability	(0.00%)	7.00%	8.00%
Enactment of the Tax Cuts and Jobs Act	9.00%	(0.00%)	(0.00%)
Derecognition due to Section 382 adjustment	192.00%	(0.00%)	(0.00%)
Change in valuation allowance for deferred tax assets	(190.00%)	35.00%	32.00%
Other	(0.00%)	(2.00%)	(0.00%)
Total	(0.00%)	(0.00%)	(0.00%)

Change in fair value of warrant liability for income taxes.

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- Definition

Effective Income Tax Rate Reconciliation, Derecognition Of Carryforward Adjustment, Percent

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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

+ 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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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Percentage of the difference, between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, that is attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority interest income (expense), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, change in enacted tax rate, prior year income taxes, change in deferred tax asset valuation allowance, and other adjustments.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax settlements. Including, but not limited to, domestic tax settlement, foreign tax settlement, state and local tax settlement, and other tax settlements.

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