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Bank Loans and Line of Credit - Schedule of Bank Loans (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Bank Loans and Line of Credit |  |
Loan Balance | $ 45,963 | $ 52,921
Beijing Tongmei Xtal Technology | Bank of China | Bank Loan with 3.5 Percent, January 2024 Due Date One |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,848 |
Interest rate | 3.50% |
Loan Balance |  | 1,795
Beijing Tongmei Xtal Technology | Bank of China | Bank Loan with 2.8 Percent, March 2024 Due Date One |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 2,184 |
Interest rate | 2.80% |
Loan Balance |  | 2,118
Beijing Tongmei Xtal Technology | Bank of China | Bank Loan with 2.7 Percent, September 2024 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 376 |
Interest rate | 2.70% |
Loan Balance |  | 386
Beijing Tongmei Xtal Technology | Bank of China | Bank Loan with 3.5 Percent, November 2024 Due Date One |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 876 |
Interest rate | 3.50% |
Loan Balance |  | 876
Beijing Tongmei Xtal Technology | Bank of China | Bank Loan with 3.5 Percent, November 2024 Due Date Two |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,003 |
Interest rate | 3.50% |
Loan Balance |  | 1,003
Beijing Tongmei Xtal Technology | Bank of China | Bank Loan with 3.5 Percent, January 2024 Due Date Two |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 2,911 |
Interest rate | 3.50% |
Loan Balance |  | 2,825
Beijing Tongmei Xtal Technology | Bank of China | Bank Loan with 2.4 Percent, September 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,426 |
Interest rate | 2.40% |
Loan Balance | $ 1,370 |
Beijing Tongmei Xtal Technology | Bank of China | Bank Loan with 2.4 Percent, November 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,370 |
Interest rate | 2.40% |
Loan Balance | $ 1,370 |
Beijing Tongmei Xtal Technology | Bank of China | Bank Loan With 2.7 Percent, November 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 685 |
Interest rate | 2.70% |
Loan Balance | $ 685 |
Beijing Tongmei Xtal Technology | Bank of Communications | Bank Loan with 3.3 Percent, January 2024 Due Date Two |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,455 |
Interest rate | 3.30% |
Loan Balance |  | 1,414
Beijing Tongmei Xtal Technology | Bank of Communications | Bank Loan with 3.8 Percent, May 2024 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,380 |
Interest rate | 3.80% |
Loan Balance |  | 1,414
Beijing Tongmei Xtal Technology | Bank of Communications | Bank Loan with 3.8 Percent, May 2024 Due Date One |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,373 |
Interest rate | 3.80% |
Loan Balance |  | 1,414
Beijing Tongmei Xtal Technology | Bank of Communications | Bank Loan with 3.0 Percent, May 2025 Due Date One |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,376 |
Interest rate | 3.00% |
Loan Balance | $ 1,370 |
Beijing Tongmei Xtal Technology | Bank of Communications | Bank Loan with 3.0 Percent, May 2025 Due Date Two |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 2,480 |
Interest rate | 3.00% |
Loan Balance | $ 2,466 |
Beijing Tongmei Xtal Technology | Agricultural Bank of China | Bank Loan With 2.6 Percent, November 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,235 |
Interest rate | 2.60% |
Loan Balance | $ 1,235 |
Beijing Tongmei Xtal Technology | Agricultural Bank of China | Bank Loan With 2.6 Percent, December 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 137 |
Interest rate | 2.60% |
Loan Balance | $ 137 |
Beijing Tongmei Xtal Technology | China Merchants Bank | Bank Loan with 3.7 Percent, January 2024 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 4,367 |
Interest rate | 3.70% |
Loan Balance |  | 4,235
Beijing Tongmei Xtal Technology | China Merchants Bank | Bank Loan with 3.5 Percent, January 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,386 |
Interest rate | 3.50% |
Loan Balance | $ 1,370 |
Beijing Tongmei Xtal Technology | China Merchants Bank | Bank Loan with 3.5 Percent, February 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 692 |
Interest rate | 3.50% |
Loan Balance | $ 685 |
Beijing Tongmei Xtal Technology | China Merchants Bank | Bank Loan with 3.5 Percent, April 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 692 |
Interest rate | 3.50% |
Loan Balance | $ 685 |
Beijing Tongmei Xtal Technology | Bank of Beijing | Bank Loan with 4.2 Percent One, January 2024 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 2,290 |
Interest rate | 4.20% |
Loan Balance |  | 2,220
Beijing Tongmei Xtal Technology | Bank of Beijing | Bank Loan with 3.2 Percent, May 2024 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 3,541 |
Interest rate | 3.20% |
Loan Balance |  | 3,626
Beijing Tongmei Xtal Technology | Bank of Beijing | Bank Loan with 3.2 Percent, February 2024 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,380 |
Interest rate | 3.20% |
Loan Balance |  | 1,414
Beijing Tongmei Xtal Technology | Bank of Beijing | Bank Loan with 3.0 Percent, December 2024 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,414 |
Interest rate | 3.00% |
Loan Balance |  | 1,414
Beijing Tongmei Xtal Technology | Bank of Beijing | Bank Loan with 3.0 Percent, February 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 3,600 |
Interest rate | 3.00% |
Loan Balance | $ 3,565 |
Beijing Tongmei Xtal Technology | Bank of Beijing | Bank Loan with 3.0 Percent, June 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 3,580 |
Interest rate | 3.00% |
Loan Balance | $ 3,565 |
Beijing Tongmei Xtal Technology | Industrial Bank |  |
Bank Loans and Line of Credit |  |
Guarantee fee (as a percent) | 1.00% |
Beijing Tongmei Xtal Technology | Industrial Bank | Bank Loan with 4.3 Percent, June 2024 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 2,757 |
Interest rate | 4.30% |
Loan Balance |  | 2,825
Beijing Tongmei Xtal Technology | Industrial Bank | Bank Loan with 4.3 Percent, July 2024 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 2,744 |
Interest rate | 4.30% |
Loan Balance |  | 2,825
Beijing Tongmei Xtal Technology | Industrial Bank | Bank Loan with 4.3 Percent, September 2024 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 2,744 |
Interest rate | 4.30% |
Loan Balance |  | 2,825
Beijing Tongmei Xtal Technology | Industrial Bank | Bank Loan with 3.9 Percent, September 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 2,851 |
Interest rate | 3.90% |
Loan Balance | $ 2,740 |
Beijing Tongmei Xtal Technology | Industrial Bank | Bank Loan With 3.9 Percent, October 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 2,679 |
Interest rate | 3.90% |
Loan Balance | $ 2,679 |
Beijing Tongmei Xtal Technology | Industrial Bank | Bank Loan With 3.2 Percent, November 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,440 |
Interest rate | 3.20% |
Loan Balance | $ 1,440 |
Beijing Tongmei Xtal Technology | NingBo Bank | Bank Loan with 4.2 Percent, September 2024 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 2,744 |
Interest rate | 4.20% |
Loan Balance |  | 2,820
Beijing Tongmei Xtal Technology | NingBo Bank | Bank Loan with 4.3 Percent, November 2024 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,271 |
Interest rate | 4.30% |
Loan Balance |  | 1,271
Beijing Tongmei Xtal Technology | NingBo Bank | Bank Loan with 4.3 Percent, December 2024 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 2,825 |
Interest rate | 4.30% |
Loan Balance |  | 2,825
Beijing Tongmei Xtal Technology | NingBo Bank | Bank Loan with 4.3 Percent, January 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,647 |
Interest rate | 4.30% |
Loan Balance | $ 1,630 |
Beijing Tongmei Xtal Technology | NingBo Bank | Bank Loan with 4.3 Percent, March 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,258 |
Interest rate | 4.30% |
Loan Balance | $ 1,255 |
Beijing Tongmei Xtal Technology | NingBo Bank | Bank Loan With 3.9 Percent, November 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,822 |
Interest rate | 3.90% |
Loan Balance | $ 1,822 |
Beijing Tongmei Xtal Technology | NingBo Bank | Bank Loan With 3.9 Percent, December 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 550 |
Interest rate | 3.90% |
Loan Balance | $ 550 |
Beijing Tongmei Xtal Technology | China Citic Bank | Bank Loan With 2.9 Percent, June 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 2,752 |
Interest rate | 2.90% |
Loan Balance | $ 2,740 |
Beijing Tongmei Xtal Technology | China Citic Bank | Bank Loan with 2.9 Percent, July 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 2,851 |
Interest rate | 2.90% |
Loan Balance | $ 2,740 |
Beijing Tongmei Xtal Technology | China Citic Bank | Bank Loan with 2.9 Percent, September 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,426 |
Interest rate | 2.90% |
Loan Balance | $ 1,370 |
Beijing Tongmei Xtal Technology | Industrial and Commercial Bank of China | Bank Loan with 3.3 Percent, September 2024 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 2,744 |
Interest rate | 3.30% |
Loan Balance |  | 2,825
Beijing Tongmei Xtal Technology | Industrial and Commercial Bank of China | Bank Loan with 3.3 Percent, September 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 2,851 |
Interest rate | 3.30% |
Loan Balance | $ 2,740 |
Beijing Tongmei Xtal Technology | NanJing Bank | Bank Loan with 3.8 Percent, October 2024 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 2,752 |
Interest rate | 3.80% |
Loan Balance |  | 2,752
Beijing BoYu Semiconductor Vessel Craftwork Technology Co | Bank of China | Bank Loan with 2.4 Percent, January 2024 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,204 |
Interest rate | 2.40% |
Loan Balance |  | 849
Beijing BoYu Semiconductor Vessel Craftwork Technology Co | Bank of China | Bank Loan with 2.3 Percent, September 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,145 |
Interest rate | 2.30% |
Loan Balance | $ 1,096 |
Beijing BoYu Semiconductor Vessel Craftwork Technology Co | Bank of China | Bank Loan With 2.4 Percent, December 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 274 |
Interest rate | 2.40% |
Loan Balance | $ 274 |
Beijing BoYu Semiconductor Vessel Craftwork Technology Co | Bank of Communications | Bank Loan with 3.0 Percent, May 2024 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,414 |
Interest rate | 3.00% |
Loan Balance |  | $ 1,414
Beijing BoYu Semiconductor Vessel Craftwork Technology Co | Bank of Communications | Bank Loan with 3.0 Percent, May 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 274 |
Interest rate | 3.00% |
Loan Balance | $ 274 |
Beijing BoYu Semiconductor Vessel Craftwork Technology Co | Industrial Bank |  |
Bank Loans and Line of Credit |  |
Guarantee fee (as a percent) |  | 0.70%
Beijing BoYu Semiconductor Vessel Craftwork Technology Co | Industrial Bank | Bank Loan With 3.6 Percent September 2024 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 688 |
Interest rate | 3.60% |
Loan Balance |  | $ 708
Beijing BoYu Semiconductor Vessel Craftwork Technology Co | Industrial Bank | Bank Loan With 2.7 Percent, November 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,370 |
Interest rate | 2.70% |
Loan Balance | $ 1,370 |
Beijing BoYu Semiconductor Vessel Craftwork Technology Co | NingBo Bank | Bank Loan with 3.3 Percent, May 2024 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,414 |
Interest rate | 3.30% |
Loan Balance |  | 1,414
Beijing BoYu Semiconductor Vessel Craftwork Technology Co | Industrial and Commercial Bank of China | Bank Loan with 2.7 Percent, December 2024 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,414 |
Interest rate | 2.70% |
Loan Balance |  | $ 1,414
Beijing BoYu Semiconductor Vessel Craftwork Technology Co | Industrial and Commercial Bank of China | Bank Loan with 2.8 Percent, September 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,426 |
Interest rate | 2.80% |
Loan Balance | $ 1,370 |
Beijing BoYu Semiconductor Vessel Craftwork Technology Co | NanJing Bank | Bank Loan With 2.8 Percent, December 2025 Due Date |  |
Bank Loans and Line of Credit |  |
Loan Detail | $ 1,370 |
Interest rate | 2.80% |
Loan Balance | $ 1,370 |

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