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Balance Sheet Details
 6 Months Ended
Jun. 30, 2013
Balance Sheet Related Disclosures [Abstract]  
Balance Sheet Details
Balance Sheet Details (in thousands)
Inventories 
 
 
June 30,
2013
 
December 31,
2012
 
 
 
(Restated)
Raw material and purchased parts
 
$
13,424

 
$
13,114

Work-in-process
 
3,382

 
1,753

Finished goods
 
13,140

 
17,511

Consigned finished goods
 
9,489

 
9,242

Total inventories
 
$
39,435

 
$
41,620


Intangible Assets
Intangible assets consisted of the following:
 
 
Gross
Carrying
Value
 
Accumulated
Amortization
 
Foreign
Currency
Adjustment
 
Net
Carrying
Value
As of June 30, 2013
 
 
 
 
 
 
 
 
Patents
 
$
2,476

 
$
(2,005
)
 
$
—

 
$
471

Developed core technology
 
1,100

 
(1,100
)
 
—

 
—

Patent license agreement
 
741

 
(674
)
 
(54
)
 
13

Total intangible assets at June 30, 2013
 
$
4,317

 
$
(3,779
)
 
$
(54
)
 
$
484

 
 
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 June 30, 2013 is as follows:
Balance at December 31, 2012
 
$
25,416

Foreign currency translation adjustments
 
(706
)
Balance at June 30, 2013
 
$
24,710


Accrued Warranty
 
 
Six Months Ended
 
 
June 30,
 
 
2013
 
2012
Beginning balance
 
$
269

 
$
258

Product warranties issued
 
180

 
170

Settlement of warranties
 
(138
)
 
(120
)
Change related to preexisting warranties
 
(132
)
 
(42
)
Foreign currency translation adjustments
 
(3
)
 
(1
)
Ending balance
 
$
176

 
$
265


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

 
$
(3,845
)
 
$
12,531

 
 
Other comprehensive loss before reclassification
 
(2,420
)
 
—

 
(2,420
)
 
 
Amounts reclassified from accumulated other comprehensive income (loss)
 
—

 
127

 
127

 
Selling, General and Administrative Expense
Net other comprehensive income (loss) for three months ended June 30, 2013
 
(2,420
)
 
127

 
(2,293
)
 
 
Balance as of June 30, 2013
 
$
13,956

 
$
(3,718
)
 
$
10,238