Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 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 March 31, 2019 and December 31, 2018:

	March 31, 2019
($ in thousands)	Level 1		Level 2		Level 3		Total
Assets:
Cash and cash equivalents, money market funds with less than 90 days maturity	$	10,354	$	—	$	—	$	10,354
Total Assets	$	10,354	$	—	$	—	$	10,354
Liabilities:
Warrant liability	$	—	$	—	$	181	$	181
Derivative liability	—		—		1,419		1,419
Total Liabilities	$	—	$	—	$	1,600	$	1,600

	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 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	29
Balance at March 31, 2019	$	181

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	(55		)
Balance at March 31, 2019	$	1,419