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Summary of Significant Accounting Policies - Narrative (Details) shares in Thousands | 3 Months Ended |
--- | --- | ---
Sep. 30, 2020 USD ($) Segment shares | Sep. 30, 2019 USD ($) shares | Jun. 30, 2020 USD ($)
Concentration Risk [Line Items] |  |  |
Foreign currency transaction gain (loss), realized | $ (100,000) | $ 100,000 |
Derivative instruments not designated as hedging instruments, gain (loss), net | (200,000) | (100,000) |
Bad debt expenses | 0 | 0 |
Inventory valuation reserves | $ 300,000 |  | $ 200,000
Money back guarantee period | 30 days |  |
Handling and restocking fee, percentage | 10.00% |  |
Return liability reserve | $ 300,000 |  | $ 300,000
Research and development | 200,000 | 200,000 |
Salvage value | 0 |  |
Present value of lease liabilities | 15,459,000 |  |
Income tax expense | $ 899,000 | $ 689,000 |
Antidilutive securities excluded from EPS calculation (in shares) | shares | 200 | 21 |
Number of operating segments | Segment | 1 |  |
Number of geographic segments | Segment | 2 |  |
Sandy, UT |  |  |
Concentration Risk [Line Items] |  |  |
Present value of lease liabilities | $ 500,000 |  |
Selling, General and Administrative Expenses |  |  |
Concentration Risk [Line Items] |  |  |
Abandonment of ROU asset | 800,000 |  |
Cash accounts held primarily at One Financial Institution |  |  |
Concentration Risk [Line Items] |  |  |
Concentration of credit risk | 12,700,000 |  |
Cash held primarily at Other Financial Institutions |  |  |
Concentration Risk [Line Items] |  |  |
Concentration of credit risk | $ 5,300,000 |  |

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