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Restructuring
 9 Months Ended
Sep. 30, 2012
Restructuring and Related Activities [Abstract]  
Restructuring and Related Activities Disclosure [Text Block]
Restructuring
In December 2011, the Company implemented a workforce reduction of approximately 70 employees from all areas of the Company. The Company recorded $4.2 million as a restructuring charge for the amount of one-time benefits provided to affected employees. Included in these costs was a net increase in non-cash, stock-based compensation of $0.4 million reflecting a modification of certain stock-based awards previously granted to the affected employees. Additionally, during 2011, in connection with excess and vacated facilities under long-term non-cancelable leases, the Company recorded $0.7 million as a restructuring charge for the estimated future lease payments, less estimated sublease income, for these vacated facilities.
The following table summarizes the accrual and usage of the restructuring charges (in thousands):

 
Leases
 
Severance
 
Total
Ending Balance, December 31, 2011
$
593

 
$
3,311

 
$
3,904

        Restructuring charge
—

 
60

 
60

        Cash payments
(28
)
 
(2,116
)
 
(2,144
)
Ending Balance, March 31, 2012
565

 
1,255

 
1,820

        Restructuring charge
—

 
(46
)
 
(46
)
        Cash payments
(28
)
 
(697
)
 
(725
)
Ending Balance, June 30, 2012
537

 
512

 
1,049

        Cash payments
(28
)
 
—

 
(28
)
Ending Balance, September 30, 2012
$
509

 
$
512

 
$
1,021

Current portion of accrued restructuring
$
116

 
$
512

 
$
628

Long-term portion of accrued restructuring
$
393

 
$
—

 
$
393