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Balance Sheet Details
 3 Months Ended
Mar. 31, 2019
Balance Sheet Related Disclosures [Abstract]  
Balance Sheet Details
Balance Sheet Details (in thousands)
Inventories
 
 
March 31,
2019
 
December 31,
2018
Raw materials and purchased parts
 
$
10,995

 
$
11,267

Work-in-process
 
766

 
492

Finished goods
 
17,552

 
12,961

Consigned inventory
 
7,573

 
8,925

Total inventories
 
$
36,886

 
$
33,645


Warranty
Activity in the warranty reserve, which is included in “accounts payable and accrued liabilities” in the condensed consolidated balance sheets, is as follows:
 
 
Three Months Ended March 31,
 
 
2019
 
2018
Beginning balance
 
$
944

 
$
1,315

Product warranties issued
 
167

 
123

Settlement of warranties
 
(56
)
 
(221
)
Changes related to preexisting warranties
 
(57
)
 
(60
)
Ending balance
 
$
998

 
$
1,157


Accumulated Other Comprehensive Income (Loss)
 
 
Foreign
Currency
Translation
Adjustment
 
Defined Benefit
Plans
 
Accumulated
Other
Comprehensive
Income
 
Affected Line Items in the Statement of Operations
Balance as of December 31, 2018
 
$
394

 
$
(690
)
 
$
(296
)
 
 
Other comprehensive income before reclassification
 
(461
)
 
—

 
(461
)
 
 
Amounts reclassified from accumulated other comprehensive income
 
—

 
—

 
—

 
Cost of Sales, Selling, General and Administrative and Research and Development Expense
Net other comprehensive income for the
three months ended March 31, 2019
 
(461
)
 
—

 
(461
)
 
 
Balance as of March 31, 2019
 
$
(67
)
 
$
(690
)
 
$
(757
)