Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Weighted Average Securities Excluded from Diluted Net Loss Per Share

The weighted average of these potentially dilutive securities has been excluded from the diluted net loss per share calculation and is as follows (in thousands):

	Year Ended December 31,
	2013		2012		2011
Stock options		12,959		13,970		11,338
Convertible subordinated notes		—		—		9,989
Total		12,959		13,970		21,327