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Bank Loans and Line of Credit - Long-Term Loans (Details) - USD ($) | 1 Months Ended |  |  |
--- | --- | --- | --- | ---
Jan. 31, 2024 | Dec. 31, 2024 | Jan. 30, 2024 | Dec. 31, 2023
Long-term Loans |  |  |  |
Maximum borrowing capacity |  |  | $ 9,700,000 |
Term of loan |  |  | 5 years |
Interest rate |  |  | 6.50% |
Line of credit, Non Current |  | $ 5,800,000 |  |
Line of credit, Current |  | 47,300,000 |  |
Loan Balance |  | $ 45,963,000 |  | $ 52,921,000
Chaoyang Xinmei High Purity Semiconductor MaterialsCo. Ltd |  |  |  |
Long-term Loans |  |  |  |
Term of loan |  | 5 years |  |
Loan amount |  |  |  | 2,100,000
Value of option to repurchase production line |  |  |  | $ 14
Long term loan |  | $ 600,000 |  |
Chaoyang Xinmei High Purity Semiconductor MaterialsCo. Ltd | Other long-term liabilities |  |  |  |
Long-term Loans |  |  |  |
Long term loan |  | 619,000 |  |
Chaoyang Xinmei High Purity Semiconductor MaterialsCo. Ltd | Short-term loans |  |  |  |
Long-term Loans |  |  |  |
Loan Balance |  | 890,000 |  |
Chao Yang Tongmei High Purity Semiconductor Materials Co. Ltd [Member] |  |  |  |
Long-term Loans |  |  |  |
Proceeds from bank loan | $ 5,800,000 |  |  |
Long term loan |  | 5,200,000 |  |
Chao Yang Tongmei High Purity Semiconductor Materials Co. Ltd [Member] | Other long-term liabilities |  |  |  |
Long-term Loans |  |  |  |
Line of credit, Non Current |  | 5,200,000 |  |
Chao Yang Tongmei High Purity Semiconductor Materials Co. Ltd [Member] | Short-term loans |  |  |  |
Long-term Loans |  |  |  |
Line of credit, Current |  | $ 411,000 |  |

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