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Supplemental Financial Information (Details - Other Liabilities) - USD ($) $ in Thousands | Dec. 31, 2021 | Jun. 30, 2021
--- | --- | ---
Current |  |
Accrued variable consideration | $ 1,984 | $ 1,347
Customer deposits and refunds | 1,130 | 1,133
Accrued raw materials purchases | 123 | 176
Deferred revenue | 605 | 850
Lease liability | 801 | 1,174
Taxes payable | 428 | 388
Warranty reserve | 635 | 197
Other accrued operating expenses | 4,582 | 2,063
Total other current liabilities | 10,288 | 7,328
Non-current |  |
Lease liability | 920 | 1,155
Deferred revenue | 366 | 241
Total other non-current liabilities | $ 1,286 | $ 1,396

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