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Financial Statement Details (Tables)
9 Months Ended
Sep. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Summary of Inventories
Inventories, net, consist of the following (in thousands):
 
September 30,
2018
 
December 31,
2017
Finished goods
$
8,820

 
$
14,331

Raw materials and components
4,927

 
6,072

Total inventories, net
$
13,747

 
$
20,403

Summary of Accrued Expenses
Accrued expenses and other current liabilities consist of the following (in thousands):
 
September 30,
2018
 
December 31,
2017
Royalties
$
1,564

 
$
1,558

Payroll and related expenses
2,499

 
2,870

Professional fees
727

 
1,789

Accrued interest
1,685

 
239

Deferred revenue
2,464

 
1,823

Acquisition-related liabilities
1,000

 
13,186

Other
6,468

 
6,093

Total accrued expenses and other current liabilities
$
16,407

 
$
27,558

Restrictions on Cash and Cash Equivalents
The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the condensed consolidated balance sheets that sum to the total of the same such amounts shown in the condensed consolidated statements of cash flows (in thousands):
 
September 30,
2018
 
December 31,
2017
 
September 30,
2017
 
December 31,
2016
Cash and cash equivalents
$
31,547

 
$
21,198

 
$
19,587

 
$
9,894

Restricted cash
61

 
61

 
411

 

Total cash, cash equivalents and restricted cash
$
31,608

 
$
21,259

 
$
19,998

 
$
9,894

Schedule of Cash and Cash Equivalents
The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the condensed consolidated balance sheets that sum to the total of the same such amounts shown in the condensed consolidated statements of cash flows (in thousands):
 
September 30,
2018
 
December 31,
2017
 
September 30,
2017
 
December 31,
2016
Cash and cash equivalents
$
31,547

 
$
21,198

 
$
19,587

 
$
9,894

Restricted cash
61

 
61

 
411

 

Total cash, cash equivalents and restricted cash
$
31,608

 
$
21,259

 
$
19,998

 
$
9,894