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Summary of Significant Accounting Policies - Concentrations (Details) - customer | 12 Months Ended
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Jun. 30, 2022 | Jun. 30, 2021
Revenue | Customer Concentration Risk |  |
Number of customers | 0 | 0
Revenue | Customer Concentration Risk | Minimum |  |
Concentration percentage | 10.00% | 10.00%
Accounts receivable | Customer Concentration Risk | Customer A |  |
Concentration percentage |  | 14.00%
Content costs from vendors | Supplier Concentration | Vendor A |  |
Concentration percentage | 21.00% | 20.00%
Content costs from vendors | Supplier Concentration | Vendor B |  |
Concentration percentage | 13.00% | 13.00%

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