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Summary of Significant Accounting Policies - Narrative (Details)
shares in Thousands
 3 Months Ended
Mar. 31, 2025
USD ($)
Jun. 30, 2024
USD ($)
Sep. 30, 2025
USD ($)
segment
shares
Sep. 30, 2024
USD ($)
shares
Jun. 30, 2025
USD ($)
Concentration Risk [Line Items]          
Foreign currency transaction gain (loss), realized     $ (100,000) $ (40,000)  
Bad debt expenses     0 0  
Inventory valuation reserves     500,000   $ 500,000
Deferred revenue     700,000   700,000
Revenue recognized related to accrued loyalty points     $ 100,000 200,000  
Money back guarantee period     30 days    
Return period for resalable and restockable Items     12 months    
Refund percent for resalable and restockable Items     100.00%    
Handling and restocking fee, percentage (as a percent)     10.00%    
Return liability reserve     $ 200,000   $ 200,000
Research and development     300,000 300,000  
Income tax expense     $ 86,000 $ 752,000  
Antidilutive securities excluded from EPS calculation (in shares) | shares     200 300  
Number of operating segments | segment     1    
Cash accounts held primarily at One Financial Institution          
Concentration Risk [Line Items]          
Concentration of credit risk $ 10,100,000 $ 17,000,000      
Cash held primarily at Other Financial Institutions          
Concentration Risk [Line Items]          
Concentration of credit risk $ 3,000,000.0 $ 3,200,000