Condensed Consolidated Financial Statement Detail (Tables)

3 Months Ended

Mar. 31, 2014

Condensed Consolidated Financial Statement Detail [Abstract]

Outstanding securities considered anti-dilutive

The following table shows the total outstanding securities considered anti-dilutive and therefore excluded from the computation of diluted net loss per share (in thousands):

	Three Months Ended March 31,
	2014		2013
Common stock options and restricted stock units		5,732		6,459
Warrants for common stock		14,273		16,176
Total		20,005		22,635

Accrued liabilities

Accrued liabilities consisted of the following at March 31, 2014 and December 31, 2013 (in thousands):

	March 31, 2014		December 31, 2013
Accrued payroll and other benefits	$	2,401	$	3,009
Accrued management incentive compensation		1,050		4,386
Other		1,444		2,539
Total	$	4,895	$	9,934