The Company and Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Summary of changes in the Company's reserve accounts
Below is a summary of the changes in the Company's allowance for doubtful accounts for 2013, 2012 and 2011 (in thousands):
 
Balance at Beginning of Period
 
(Benefit)
Provision Net of Recoveries
 
Write-offs
 
Balance at
End of Period
Allowance for doubtful accounts
 
 
 
 
 
 
 
Year ended December 31, 2013
$
481

 
$
830

 
$
(661
)
 
$
650

Year ended December 31, 2012
225

 
434

 
(178
)
 
481

Year ended December 31, 2011
366

 
(8
)
 
(133
)
 
225