Quarterly report pursuant to Section 13 or 15(d)

BALANCE SHEET COMPONENTS Balance Sheet Components (Details)

v3.8.0.1
BALANCE SHEET COMPONENTS Balance Sheet Components (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Mar. 31, 2017
Dec. 31, 2016
Condensed Balance Sheet Statements, Captions [Line Items]        
Cash and Cash Equivalents, at Carrying Value $ 145,095 $ 135,311    
Restricted cash 3,279 3,167    
Cash 148,374 138,478 $ 137,664 $ 128,884
Inventory, Finished Goods, Gross 7,524 7,779    
Inventory, Raw Materials and Supplies, Gross 572 799    
Inventory Valuation Reserves (152) (180)    
Inventory, Net 7,944 8,398    
Accrued Sales Returns 689 614    
Accrued Employee Benefits, Current 5,316 5,568    
Accrued Warehousing And Inventory Related Expense 2,544 1,423    
Other Accrued Liabilities, Current 8,549 7,605    
Deferred Revenue, Current 4,112 4,455    
Cash Equivalents [Member]        
Condensed Balance Sheet Statements, Captions [Line Items]        
Cash and Cash Equivalents, at Carrying Value 74,846 73,608    
Cash [Member]        
Condensed Balance Sheet Statements, Captions [Line Items]        
Cash and Cash Equivalents, at Carrying Value 70,249 61,703    
Enrollment Package Revenue [Member]        
Condensed Balance Sheet Statements, Captions [Line Items]        
Deferred Revenue 355 379    
Auto Ship Advances [Member]        
Condensed Balance Sheet Statements, Captions [Line Items]        
Deferred Revenue 1,740 1,665    
Unshipped Product [Member]        
Condensed Balance Sheet Statements, Captions [Line Items]        
Deferred Revenue $ 2,017 $ 2,411