Quarterly report [Sections 13 or 15(d)]

Note 3 - Balance Sheet Components - Summary of Balance Sheet Amounts (Details)

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Note 3 - Balance Sheet Components - Summary of Balance Sheet Amounts (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Cash $ 4,811 $ 5,896  
Cash equivalents 4,410 917  
Cash and cash equivalents 9,221 6,813  
Restricted cash included in other long-term assets 7 7  
Cash restricted cash and cash equivalents 9,228 6,820  
Inventories:      
Finished goods 1,783 1,809  
Raw materials 188 238  
Inventory net 1,971 2,047  
Other assets:      
Refundable deposits and other 475 489  
Other Assets, Noncurrent 1,976 1,923  
Other accrued expenses:      
Sales returns 74 100  
Employee-related expense 535 613  
Warehousing, inventory-related and other 625 725  
Accrued Liabilities, Current 1,234 1,438  
Deferred revenue:      
Deferred revenue 5,001 5,574  
Unshipped Product [Member]      
Deferred revenue:      
Deferred revenue 3,511 4,063  
Auto ship advances [Member]      
Deferred revenue:      
Deferred revenue 1,490 1,511  
Software, In-Development [Member]      
Other assets:      
Capitalized software implementation costs $ 1,501 $ 1,434 $ 1,400