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Summary of Significant Accounting Policies - Narrative (Details) shares in Thousands |  |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | ---
Dec. 31, 2023 USD ($) | Jun. 30, 2023 USD ($) | Mar. 31, 2024 USD ($) shares | Mar. 31, 2023 USD ($) shares | Mar. 31, 2024 USD ($) segment region shares | Mar. 31, 2023 USD ($) shares
Concentration Risk [Line Items] |  |  |  |  |  |
Foreign currency transaction gain (loss), realized |  |  | $ (100,000) | $ 36,000 | $ (200,000) | $ (200,000)
Bad debt expenses |  |  | 0 | 0 | 0 | 0
Inventory valuation reserves |  | $ 1,300,000 | 1,300,000 |  | 1,300,000 |
Deferred revenue |  | 800,000 | 700,000 |  | 700,000 |
Revenue recognized related to accrued loyalty points |  |  | $ (200,000) | 100,000 | $ (100,000) | 300,000
Money back guarantee period |  |  |  |  | 30 days |
Return period for resalable and restockable Items |  |  |  |  | 12 months |
Refund percent for resalable and restockable Items |  |  | 100.00% |  | 100.00% |
Handling and restocking fee, percentage (as a percent) |  |  | 10.00% |  | 10.00% |
Return liability reserve |  | 100,000 | $ 100,000 |  | $ 100,000 |
Research and development |  |  | 200,000 | 200,000 | 500,000 | 400,000
Present value of lease liabilities |  |  | 13,527,000 |  | 13,527,000 |
Loss on contract termination |  |  |  | 400,000 |  | 400,000
Income tax expense |  |  | $ 262,000 | $ 643,000 | $ 7,000 | $ 869,000
Antidilutive securities excluded from EPS calculation (in shares) | shares |  |  | 8 | 100 | 34 | 300
Number of geographic segments | region |  |  |  |  | 2 |
Number of operating segments | segment |  |  |  |  | 1 |
HONG KONG |  |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |  |
Present value of lease liabilities |  |  | $ 0 |  | $ 0 |
Cash accounts held primarily at One Financial Institution |  |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |  |
Concentration of credit risk | $ 13,100,000 | 17,000,000 |  |  |  |
Cash held primarily at Other Financial Institutions |  |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |  |
Concentration of credit risk | $ 4,300,000 | $ 4,600,000 |  |  |  |

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