Annual report pursuant to Section 13 and 15(d)

Note 4 - Balance Sheet Components - Summary of Balance Sheet Amounts (Details)

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Note 4 - Balance Sheet Components - Summary of Balance Sheet Amounts (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Cash and cash equivalents:      
Cash $ 23,977 $ 13,720  
Cash equivalents 68,390 82,315  
Cash and Cash Equivalents, at Carrying Value, Ending Balance 92,367 96,035  
Restricted cash 525 3,390  
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Ending Balance 92,892 99,425 $ 135,651
Inventories:      
Finished goods 3,071 6,142  
Raw materials 1,047 1,249  
Reserve for obsolescence (339) (987)  
Inventory, Net, Total 3,779 6,404  
Property and equipment:      
Office equipment 449 578  
Office software 1,001 1,037  
Machinery 30 28  
Furniture and fixtures 254 327  
Leasehold improvements 839 1,001  
Construction in progress 41 0  
Property and equipment, at cost 2,614 2,971  
Accumulated depreciation and amortization (2,075) (2,236)  
Property, Plant and Equipment, Net, Ending Balance 539 735  
Other accrued expenses:      
Sales returns 189 373  
Employee-related expense 1,149 1,258  
Warehousing, inventory-related and other 584 756  
Accrued Liabilities, Current, Total 1,922 2,387  
Deferred revenue:      
Deferred revenue 3,091 4,506  
Unshipped Product [Member]      
Deferred revenue:      
Deferred revenue 1,005 2,390  
Auto ship advances [Member]      
Deferred revenue:      
Deferred revenue 1,977 1,985  
Product and Service, Other [Member]      
Deferred revenue:      
Deferred revenue $ 109 $ 131