Bank Loans and Line of Credit - Schedule of Bank Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Bank Loans and Line of Credit
Loan Balance	$ 45,776	$ 47,078
Beijing Tongmei Xtal Technology \| Bank of China \| Bank Loan with 2.7 Percent, March 2023 Due Date
Bank Loans and Line of Credit
Loan Detail		$ 2,108
Interest Rate		2.70%
Loan Balance		$ 2,175
Beijing Tongmei Xtal Technology \| Bank of China \| Bank Loan with 4.6 Percent, January 2023 Due Date
Bank Loans and Line of Credit
Loan Detail		$ 3,935
Interest Rate		4.60%
Loan Balance		$ 4,059
Beijing Tongmei Xtal Technology \| Bank of China \| Bank Loan with 4.2 Percent, April 2023 Due Date
Bank Loans and Line of Credit
Loan Detail		$ 1,405
Interest Rate		4.20%
Loan Balance		$ 1,450
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	$ 1,741
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	$ 2,056
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	$ 376
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	$ 2,746
Beijing Tongmei Xtal Technology \| Bank of Communications \| Bank Loan with 3.3 Percent, January 2023 Due Date One
Bank Loans and Line of Credit
Loan Detail		$ 1,405
Interest Rate		3.30%
Loan Balance		$ 1,450
Beijing Tongmei Xtal Technology \| Bank of Communications \| Bank Loan with 3.3 Percent, December 2023 Due Date
Bank Loans and Line of Credit
Loan Detail	$ 1,450	$ 1,450
Interest Rate	3.30%	3.30%
Loan Balance	$ 1,373	$ 1,450
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	$ 1,373
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	$ 1,373
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	$ 1,373
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	$ 4,112
Beijing Tongmei Xtal Technology \| Bank of Beijing \| Bank Loan with 4.2 Percent, May 2023 Due Date.
Bank Loans and Line of Credit
Loan Detail		$ 3,192
Interest Rate		4.20%
Loan Balance		$ 3,292
Beijing Tongmei Xtal Technology \| Bank of Beijing \| Bank Loan with 4.2 Percent, January 2024 Due Date Three
Bank Loans and Line of Credit
Loan Detail	$ 2,290
Interest Rate	4.20%
Loan Balance	$ 2,157
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	$ 3,522
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	$ 1,373
Beijing Tongmei Xtal Technology \| Industrial Bank \| Bank Loan with 4.4 Percent, June 2023 Due Date.
Bank Loans and Line of Credit
Loan Detail		$ 5,621
Interest Rate		4.40%
Loan Balance		$ 5,798
Beijing Tongmei Xtal Technology \| Industrial Bank \| Bank Loan with 4.4 Percent, September 2023 Due Date.
Bank Loans and Line of Credit
Loan Detail	$ 2,811	$ 2,811
Interest Rate	4.40%	4.40%
Loan Balance		$ 2,900
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	$ 2,744
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	$ 2,744
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	$ 2,744
Beijing Tongmei Xtal Technology \| NingBo Bank \| Bank Loan with 4.8 Percent, June 2023 Due Date
Bank Loans and Line of Credit
Loan Detail		$ 1,405
Interest Rate		4.80%
Loan Balance		$ 1,450
Beijing Tongmei Xtal Technology \| NingBo Bank \| Bank Loan with 4.8 Percent, August 2023 Due Date.
Bank Loans and Line of Credit
Loan Detail		$ 1,405
Interest Rate		4.80%
Loan Balance		$ 1,450
Beijing Tongmei Xtal Technology \| NingBo Bank \| Bank Loan with 4.8 Percent, September 2023 Due Date.
Bank Loans and Line of Credit
Loan Detail	$ 1,405	$ 1,405
Interest Rate	4.80%	4.80%
Loan Balance		$ 1,450
Beijing Tongmei Xtal Technology \| NingBo Bank \| Bank Loan with 4.5 Percent, November 2023 Due Date
Bank Loans and Line of Credit
Loan Detail	$ 1,406	$ 1,406
Interest Rate	4.50%	4.50%
Loan Balance	$ 1,373	$ 1,450
Beijing Tongmei Xtal Technology \| NingBo Bank \| Bank Loan with 4.5 Percent, December 2023 Due Date
Bank Loans and Line of Credit
Loan Detail	$ 2,900	$ 2,900
Interest Rate	4.50%	4.50%
Loan Balance		$ 2,900
Beijing Tongmei Xtal Technology \| NingBo Bank \| Bank Loan with 4.5 Percent, January 2024 Due Date
Bank Loans and Line of Credit
Loan Detail	$ 1,382
Interest Rate	4.50%
Loan Balance	$ 1,303
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	$ 2,744
Beijing Tongmei Xtal Technology \| Industrial and Commercial Bank of China \| Bank Loan with 3.2 Percent, July 2023 Due Date.
Bank Loans and Line of Credit
Loan Detail	$ 5,621	$ 5,621
Interest Rate	3.20%	3.20%
Loan Balance		$ 5,800
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	$ 2,744
Beijing Tongmei Xtal Technology \| NanJing Bank \| Bank Loan with 4.3 Percent, September 2023 Due Date.
Bank Loans and Line of Credit
Loan Detail	$ 2,811	$ 2,811
Interest Rate	4.30%	4.30%
Loan Balance		$ 2,899
Beijing Tongmei Xtal Technology \| NanJing Bank \| Bank Loan with 4.3 Percent, November 2023 Due Date
Bank Loans and Line of Credit
Loan Detail	$ 1,265	$ 1,265
Interest Rate	4.30%	4.30%
Loan Balance	$ 1,234	$ 1,305
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	$ 1,134
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	$ 688
Beijing BoYu Semiconductor Vessel Craftwork Technology Co \| NingBo Bank \| Bank Loan with 4.8 Percent, March 2023 Due Date.
Bank Loans and Line of Credit
Loan Detail		$ 703
Interest Rate		4.80%
Loan Balance		$ 725
Beijing BoYu Semiconductor Vessel Craftwork Technology Co \| NingBo Bank \| Bank Loan with 3.6 Percent, May 2023 Due Date
Bank Loans and Line of Credit
Loan Detail		$ 1,406
Interest Rate		3.60%
Loan Balance		$ 1,450
Beijing BoYu Semiconductor Vessel Craftwork Technology Co \| NingBo Bank \| Bank Loan with 4.8 Percent, June 2023 Due Date Two
Bank Loans and Line of Credit
Loan Detail		$ 725
Interest Rate		4.80%
Loan Balance		$ 725
Beijing BoYu Semiconductor Vessel Craftwork Technology Co \| NingBo Bank \| Bank Loan with 3.7 Percent, November 2023 Due Date
Bank Loans and Line of Credit
Loan Detail	$ 690
Interest Rate	3.70%
Loan Balance	$ 688
Beijing BoYu Semiconductor Vessel Craftwork Technology Co \| NingBo Bank \| Bank Loan with 3.7 Percent, December 2023 Due Date
Bank Loans and Line of Credit
Loan Detail	$ 690
Interest Rate	3.70%
Loan Balance	$ 688
Beijing BoYu Semiconductor Vessel Craftwork Technology Co \| Industrial and Commercial Bank of China \| Bank Loan with 2.8 Percent, December 2023 Due Date
Bank Loans and Line of Credit
Loan Detail	$ 1,450	$ 1,450
Interest Rate	2.80%	2.80%
Loan Balance	$ 1,373	$ 1,450