Convertible Notes (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Convertible Promissory Notes Outstanding

Convertible promissory notes outstanding were as follows:

($ in thousands)	December 31,
	2016			2015
Convertible promissory notes	$	18,088		$	—
Debt discount - warrants	(9,643		)	—
Debt discount - compound bifurcated derivatives	(1,273		)	—
Debt discount - beneficial conversion feature	(7,172		)	—
Convertible promissory notes, net	$	—		$	—

Estimated Fair Value of Compounded Bifurcated Derivative

Significant inputs and assumptions used in the binomial lattice model for the derivative liability are as follows:

($ in thousands except per share data)	December 31, 2016
Calculated aggregate value	$	1,735
Closing price per share of common stock	$	0.63
Contractual remaining term	9 years, 8 months
Contractual interest rate	4.0		%
Volume-weighted average conversion rate	$	1.13662
Risk-free interest rate (term structure)	0.44% - 2.45%
Dividend yield	—
Credit Rating	CC
Credit Spread	33.27		%
Volatility	99.9		%