Quarterly report pursuant to Section 13 or 15(d)

BALANCE SHEET COMPONENTS Balance Sheet Components (Details)

v3.10.0.1
BALANCE SHEET COMPONENTS Balance Sheet Components (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Jun. 30, 2017
Dec. 31, 2016
Condensed Balance Sheet Statements, Captions [Line Items]        
Cash and Cash Equivalents, at Carrying Value $ 128,270 $ 135,311    
Restricted cash 3,111 3,167    
Cash 131,381 138,478 $ 139,224 $ 128,884
Inventory, Finished Goods, Gross 9,852 7,779    
Inventory, Raw Materials and Supplies, Gross 574 799    
Inventory Valuation Reserves (68) (180)    
Inventory, Net 10,358 8,398    
Accrued Sales Returns 455 614    
Accrued Employee Benefits, Current 6,069 5,568    
Accrued Warehousing And Inventory Related Expense 1,633 1,423    
Other Accrued Liabilities, Current 8,157 7,605    
Deferred Revenue, Current 3,831 4,455    
Cash [Member]        
Condensed Balance Sheet Statements, Captions [Line Items]        
Cash and Cash Equivalents, at Carrying Value 51,124 61,703    
Cash Equivalents [Member]        
Condensed Balance Sheet Statements, Captions [Line Items]        
Cash and Cash Equivalents, at Carrying Value 77,146 73,608    
Unshipped Product [Member]        
Condensed Balance Sheet Statements, Captions [Line Items]        
Deferred Revenue 1,703 2,411    
Auto Ship Advances [Member]        
Condensed Balance Sheet Statements, Captions [Line Items]        
Deferred Revenue 1,752 1,665    
Enrollment Package Revenue [Member]        
Condensed Balance Sheet Statements, Captions [Line Items]        
Deferred Revenue $ 376 $ 379