Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2019

Fair Value Disclosures [Abstract]

Company's Financial Assets and Liability Measured at Fair Value on a Recurring Basis

The following fair value hierarchy table presents information about each major category of the Company’s financial assets and liabilities measured at fair value on a recurring basis as of June 30, 2019 and December 31, 2018:

	June 30, 2019
($ in thousands)	Level 1		Level 2		Level 3		Total
Assets:
Cash and cash equivalents, money market funds with less than 90 days maturity	$	12,369	$	—	$	—	$	12,369
Total Assets	$	12,369	$	—	$	—	$	12,369
Liabilities:
Warrant liability	$	—	$	—	$	144	$	144
Derivative liability	—		—		2,557		2,557
Total Liabilities	$	—	$	—	$	2,701	$	2,701

	December 31, 2018
($ in thousands)	Level 1		Level 2		Level 3		Total
Assets:
Cash and cash equivalents, money market funds with less than 90 days maturity	$	12,290	$	—	$	—	$	12,290
Total Assets	$	12,290	$	—	$	—	$	12,290
Liabilities:
Warrant liability	$	—	$	—	$	152	$	152
Derivative liability	—		—		1,474		1,474
Total Liabilities	$	—	$	—	$	1,626	$	1,626

Reconciliation of Liabilities Measured at Fair Value on Recurring Basis

The reconciliation of the derivative liability measured at fair value on a recurring basis using unobservable inputs (Level 3) was as follows:

	Derivative
($ in thousands)	Liability
Balance at December 31, 2018	$	1,474
Change in fair value of derivative liability	1,083
Balance at June 30, 2019	$	2,557

The reconciliation of the Company’s warrant liability measured at fair value on a recurring basis using unobservable inputs (Level 3) was as follows:

	Warrant
($ in thousands)	Liability
Balance at December 31, 2018	$	152
Change in fair value of warrant liability	(8		)
Balance at June 30, 2019	$	144