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ACCRUED EXPENSES (Tables) | 6 Months Ended
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Dec. 31, 2022
ACCRUED EXPENSES |
Schedule of accrued expenses | Accrued expenses consist of the following (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, |  | June 30,
​ | ​ | 2022 | ​ | 2022
Employee compensation | ​ | $ | 155 | ​ | $ | 468
Accrued warranty | ​ | ​ | 50 | ​ | ​ | 55
Customer refund | ​ | ​ | 150 | ​ | ​ | 51
Others | ​ |  | 22 | ​ |  | 81
Total | ​ | $ | 377 | ​ | $ | 655

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