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Balance Sheet Components
12 Months Ended
Dec. 31, 2017
Balance Sheet Components [Abstract]  
Supplemental Balance Sheet Disclosures [Text Block] BALANCE SHEET COMPONENTS

The components of certain balance sheet amounts are as follows (in thousands):
 
December 31,
 
2017
 
2016
Cash and cash equivalents:
 
 
 
Cash
$
61,703

 
$
52,453

Cash equivalents
73,608

 
73,468

 
$
135,311

 
$
125,921

Inventories:
 
 
 
Finished goods
$
7,779

 
$
10,722

Raw materials
799

 
617

Inventory reserve for obsolescence
(180
)
 
(82
)
 
$
8,398

 
$
11,257

Property and equipment:
 
 
 
Office equipment
$
530

 
$
517

Office software
916

 
672

Machinery
30

 
28

Furniture and fixtures
276

 
241

Leasehold improvements
957

 
840

Construction in progress (including internal-use software development costs)
10

 
157

Property and equipment, at cost
2,719

 
2,455

Accumulated depreciation and amortization
(1,570
)
 
(1,067
)
 
$
1,149

 
$
1,388

Other accrued expenses:
 
 
 
Sales returns
$
614

 
$
1,632

Employee-related expense
5,568

 
10,541

Warehousing, inventory-related and other
1,423

 
2,816

 
$
7,605

 
$
14,989

Deferred revenue:
 

 
 

Unshipped product
$
2,411

 
$
2,191

Auto ship advances
1,665

 
2,327

Enrollment package revenue
379

 
430

 
$
4,455

 
$
4,948


As of December 31, 2017, cash and cash equivalents include $8.7 million held in banks located within China subject to foreign currency controls.