Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis

Assets and liabilities measured at fair value on a recurring basis as of September 30, 2018 and December 31, 2017 were as follows:

($ in thousands)				Fair Value Measurements at Reporting Date Using
Description	Balance as of September 30, 2018			Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	$	30,305		$	30,305	$	—	$	—
Liabilities:
Derivative liabilities	$	(2,597	)	$	—	$	—	$	(2,597	)

($ in thousands)				Fair Value Measurements at Reporting Date Using
Description	Balance as of December 31, 2017			Quoted Prices in Active Markets for Identical Assets/Liabilities (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	$	66,156		$	66,156	$	—	$	—
Liabilities:
Derivative liabilities	$	(2,424	)	$	—	$	—	$	(2,424	)