Number of persons employed by the Entity

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- Definition

Area of the leased property.

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No definition available.

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The cash outflow associated with the payment of certain development, regulatory and sales milestones detailed in the license agreement.

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Milestone payments to be made upon the achievement of certain development, regulatory and sales milestones detailed in the license agreement.

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Period of time commencing upon the commercial launch of EG-1962, the Company's lead product candidate, in which the Company must pay a royalty in an amount equal to a low single digit percentage of net sales of EG-1962, regardless of the manufacturer or supplier thereof, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Term for payment of severance benefits to an executive (as well as certain potential bonus, COBRA and equity award benefits), in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Term for payment of severance benefits to an executive (as well as certain potential bonus, COBRA and equity award benefits) in connection with a termination following a change of control, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

The adjustment to reduce the value of existing agreements that specify the lessee's rights to use the leased property. This expense is charged when the estimates of future profits generated by the leased property are reduced.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References

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- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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- Definition

Minimum amount of other commitment maturing in the next fiscal year following the latest fiscal year for commitments not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in this taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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Commitments and Contingencies (Q3) (Details)	1 Months Ended					3 Months Ended		9 Months Ended		12 Months Ended
Commitments and Contingencies (Q3) (Details)	Aug. 31, 2018 USD ($)	Apr. 30, 2018 USD ($)	Jul. 31, 2017 USD ($)	Aug. 31, 2016 USD ($)	Oct. 31, 2010 USD ($)	Sep. 30, 2018 USD ($) Employee	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) ft² Employee	Sep. 30, 2017 USD ($)	Dec. 31, 2017 USD ($) ft²	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Mar. 31, 2018 Employee	Jun. 30, 2017 USD ($)	Feb. 18, 2016	Dec. 13, 2013
Commitments and Contingencies [Abstract]
Number of employees \| Employee						14		14					37
Leases [Abstract]
Rent expense						$ 148,284	$ 152,026	$ 450,053	$ 450,700	$ 602,925	$ 344,341	$ 207,541
Future Minimum Rental Payments Required under Operating Leases [Abstract]
2018 (remaining)						151,572		151,572
2019						604,541		604,541		604,541
2020						603,371		603,371		603,371
2021						530,385		530,385		530,385
2022 and after						0		0		0
Total minimum payments required						1,889,869		1,889,869		2,340,758
Evonik [Member]
Commitments and Contingencies [Abstract]
Milestone payments paid				$ 1,000,000	$ 250,000
Evonik [Member] \| Maximum [Member]
Commitments and Contingencies [Abstract]
Milestone payments to be paid					$ 14,750,000
Oakwood Amended and Restated Master Formulation Development Agreement [Member]
Commitments and Contingencies [Abstract]
Milestone payments paid	$ 2,375,000	$ 500,000	$ 1,500,000
Remaining milestone payments to have been paid no later than April 1, 2019						$ 2,500,000		$ 2,500,000		$ 500,000
Royalty Term								12 years		12 years
Oakwood Amended and Restated Master Formulation Development Agreement [Member] \| Maximum [Member]
Commitments and Contingencies [Abstract]
Milestone payments to be paid														$ 4,500,000
Oakwood Manufacturing and Supply Agreement [Member] \| Maximum [Member]
Commitments and Contingencies [Abstract]
Milestone payments to be paid														$ 2,250,000
Employment Agreements [Member]
Commitments and Contingencies [Abstract]
Term for payment of severance benefits following a change of control								24 months
Employment Agreements [Member] \| Minimum [Member]
Commitments and Contingencies [Abstract]
Term for payment of severance benefits								12 months		12 months
Employment Agreements [Member] \| Maximum [Member]
Commitments and Contingencies [Abstract]
Term for payment of severance benefits								18 months		18 months
Office Space in Berkeley Heights, New Jersey Under Lease Effective December 13, 2013 [Member]
Leases [Abstract]
Term of lease																63 months
Area of leased property \| ft²								8,000		8,000
Write-off of leasehold improvements											$ 67,118
Office Space in Berkeley Heights, New Jersey Under Lease Entered into February 18, 2016 [Member]
Leases [Abstract]
Term of lease															63 months
Area of leased property \| ft²								20,410		20,410