Debt Instrument, Period After Product Candidate is Approved to Reach Maturity Date

No definition available.

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- Definition

Debt Instrument, Prepayment Percent of Outstanding Principal

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Required Written Notice Period Prior to Exercise of Put Right

+ References

No definition available.

+ Details

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- Definition

Amount of amortization expense attributable to debt discount (premium) and debt issuance costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ 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.(i)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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- Definition

The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870

+ Details

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Period Type:	instant

- Definition

Remaining amortization period for discount on the liability component of convertible debt which may be settled in cash upon conversion, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
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+ Details

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount, after accumulated amortization, of debt discount.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
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- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
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Convertible Notes - Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended
Convertible Notes - Narrative (Details) - USD ($)	Sep. 30, 2016	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Debt Instrument [Line Items]
Debt discount		$ 18,003,000		$ 18,003,000
Expected term		5 years
Derivative revaluation expense		$ 63,000	$ 312,000
Compounded Bifurcated Derivatives
Debt Instrument [Line Items]
Debt discount	$ 1,300,000	1,267,000		1,267,000
Warrants Issued With September 2016 Convertible Notes
Debt Instrument [Line Items]
Debt discount	9,600,000	9,598,000		9,598,000
Beneficial Conversion Feature
Debt Instrument [Line Items]
Debt discount	$ 7,200,000	$ 7,138,000		$ 7,138,000
Warrants Issued With September 2016 Convertible Notes
Debt Instrument [Line Items]
Warrants issued to purchase common stock (in shares)	6,029,174
Convertible Debt
Debt Instrument [Line Items]
Convertible debt principal	$ 18,087,500
Interest rate	4.00%
Period after product candidate FCX-007 is approved to reach maturity	180 days
Required written notice period prior to exercise of put right	180 days
Prepayment as a percent of outstanding principal		101.00%
Principal value notes and related accrued interest converted to common stock		$ 0
Debt discount	$ 18,100,000
Amortization of debt discount		$ 0	$ 0
Effective yield		1157.00%
Convertible Debt \| Minimum
Debt Instrument [Line Items]
Conversion price (in dollars per share)	$ 3.40875
Convertible Debt \| Maximum
Debt Instrument [Line Items]
Conversion price (in dollars per share)	$ 3.67875