Supplemental Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2014

Supplemental Cash Flow Elements [Abstract]

Schedule of Cash Flow, Supplemental Disclosures

The following table contains additional cash flow information for the years ended:

($ in thousands)	December 31, 2014		December 31, 2013		December 31, 2012
Supplemental disclosures of cash flow information:
Cash paid for interest	$	—	$	—	$	1,885
Cash paid for income taxes	$	—	$	—	$	—
Non-cash investing and financing activities:
Subscription receivable	$	—	$	—	$	2,004
Conversion of note payable	$	—	$	—	$	2,385
Issuance of additional warrants	$	—	$	—	$	11,077
Conversion of preferred stock derivative balance into common stock	$	—	$	—	$	1,350
Cashless exercise of warrants previously recorded as a liability	$	—	$	298	$	17
Warrant liability reclassified to equity	$	—	$	—	$	15,048
Accrued derivative liability	$	—	$	—	$	793