Nine Months Ended
September 30,

2012

2011

Supplemental non-cash investing and financing activities:

Fair value of warrant liability reclassified to additional paid-in capital

$

13,973

$

—

Value exchanged in conversion of preferred stock to common stock

—

11,205

Value of common stock issued in payment of convertible notes

—

5,165

Value of common stock issued in payment of preferred stock dividends

—

3,254

Value of common stock issued in payment of term loan debt

—

1,398

Equipment acquired through capital leases

1,072

1,149

Supplemental cash payment information:

Interest paid

$

4,357

$

7,567

Income taxes paid

12,158

1,070