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Balance Sheet Details
 3 Months Ended
Mar. 31, 2013
Balance Sheet Related Disclosures [Abstract]  
Balance Sheet Details
Balance Sheet Details (in thousands)
Inventories
 
 
March 31, 2013
 
December 31, 2012
 
 
 
(Restated)
Raw material and purchased parts
 
$
14,525

 
$
13,114

Work-in-process
 
2,864

 
1,753

Finished goods
 
16,085

 
17,511

Consigned finished goods
 
8,862

 
9,242

Total inventories
 
$
42,336

 
$
41,620


Intangible Assets
Intangible assets consisted of the following:
 
 
Gross
Carrying
Value
 
Accumulated
Amortization
 
Foreign
Currency
Adjustment
 
Net
Carrying
Value
As of March 31, 2013
 
 
 
 
 
 
 
 
Patents
 
$
2,476

 
$
(1,954
)
 
$
—

 
$
522

Developed core technology
 
1,100

 
(1,100
)
 
—

 
—

Patent license agreement
 
741

 
(640
)
 
(48
)
 
53

Total intangible assets at March 31, 2013
 
$
4,317

 
$
(3,694
)
 
$
(48
)
 
$
575

 
 
Gross
Carrying
Value
 
Accumulated
Amortization
 
Foreign
Currency
Adjustment
 
Net
Carrying
Value
As of December 31, 2012
 
 
 
 
 
 
 
 
Patents
 
$
2,476

 
$
(1,903
)
 
$
—

 
$
573

Developed core technology
 
1,100

 
(1,100
)
 
—

 
—

Patent license agreement
 
741

 
(606
)
 
(39
)
 
96

Total intangible assets at December 31, 2012
 
$
4,317

 
$
(3,609
)
 
$
(39
)
 
$
669


Goodwill
The change in the carrying amount of goodwill from December 31, 2012 to March 31, 2013 is as follows:
Balance at December 31, 2012
 
$
25,416

Foreign currency translation adjustments
 
(813
)
Balance at March 31, 2013
 
$
24,603


Accrued Warranty
 
 
Three Months Ended
 
 
March 31,
 
 
2013
 
2012
Beginning balance
 
$
269

 
$
258

Product warranties issued
 
86

 
63

Settlement of warranties
 
(4
)
 
(13
)
Change related to preexisting warranties
 
(80
)
 
(27
)
Foreign currency translation adjustments
 
(4
)
 
6

Ending balance
 
$
267

 
$
287


Accumulated Other Comprehensive Income
 
 
Foreign
Currency
Translation
Adjustment
 
Defined Benefit
Pension Plan
 
Accumulated
Other
Comprehensive
Income
 
Affected Line Items in the Statement of Operations
Balance as of December 31, 2012
 
$
16,376

 
$
(3,845
)
 
$
12,531

 
 
Other comprehensive loss before reclassifications
 
(2,844
)
 
—

 
(2,844
)
 
 
Amounts reclassified from accumulated other comprehensive income (loss)
 
—

 
64

 
64

 
Selling, General and Administrative Expense
Net other comprehensive income (loss) for three months ended March 31, 2013
 
(2,844
)
 
64

 
(2,780
)
 
 
Balance as of March 31, 2013
 
$
13,532

 
$
(3,781
)
 
$
9,751