Supplemental Cash Flow Information

6 Months Ended

Jun. 30, 2013

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flow Information

Note 6—Supplemental Cash Flow Information

The following table contains additional cash flow information for the periods reported.

	For the six months ended			For the six months ended
	June 30, 2013			June 30, 2012
Supplemental disclosures of cash flow information:
Cash paid for interest	$	—		$	1,161
Non-cash investing and financing activities:
Accrued preferred stock dividend		—			115
Accrued warrant liability		—			10,399
Accrued derivative liability		—			1,207
Subscription receivable		—			550
Conversion of preferred stock derivative balance into common stock		—			80
Cashless exercise of warrants recorded as a liability		(38	)		—
Common stock issued in connection with conversion of debt		—			25