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Related Party Transactions (Details)	1 Months Ended									6 Months Ended
Related Party Transactions (Details)	May 31, 2022 USD ($)	Apr. 30, 2022 USD ($)	Jan. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Oct. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Jul. 31, 2021 USD ($)	Jul. 31, 2017 USD ($) installment	Mar. 31, 2012 USD ($) ft²	Jun. 30, 2022 USD ($) ft²	May 31, 2021	Feb. 28, 2021
Related Party Transaction [Line Items]
Area of leased property (in square feet) \| ft²										19,467
Related party loan \| ChaoYang XinMei High Purity Semiconductor Materials Co., Ltd
Related Party Transaction [Line Items]
Increase in redeemable noncontrolling interests	$ 100,000
Loan from related party \| ChaoYang XinMei High Purity Semiconductor Materials Co., Ltd
Related Party Transaction [Line Items]
Increase in redeemable noncontrolling interests	100,000
Donghai County Dongfang High Purity Electronic Materials Co., Ltd \| Raw materials purchases from related party \| Accounts payable \| Chao Yang Tongmei Xtal Technology Co., Ltd.
Related Party Transaction [Line Items]
Amount payable to related party				$ 112,000						$ 106,000
Beijing BoYu Semiconductor Vessel Craftwork Technology Co \| Lease of land \| Beijing Tongmei Xtal Technology
Related Party Transaction [Line Items]
Area of leased property (in square feet) \| ft²									22,081
Lease term			11 years						10 years
Annual lease payment			$ 27,000						$ 24,000
Increase in annual lease payment at each third year anniversary (in hundredths)			5.00%						5.00%
Rental increase period										3 years
Nanjing JinMei Gallium Co., Ltd \| Related party loan \| Beijing Tongmei Xtal Technology
Related Party Transaction [Line Items]
Number of installments \| installment								3
Related party notes receivable - long term								$ 768,000
Amount payable to related party				0						$ 0
Interest rate (as a percent)								4.90%
Repayment of related party notes receivable							$ 858,000
ChaoYang Xinshuo \| Related party loan \| ChaoYang XinMei High Purity Semiconductor Materials Co., Ltd
Related Party Transaction [Line Items]
Amount paid to subsidiary	600,000	$ 700,000
ChaoYang Xinshuo \| Loan from related party \| ChaoYang XinMei High Purity Semiconductor Materials Co., Ltd
Related Party Transaction [Line Items]
Amount of transaction					$ 1,000,000.0	$ 900,000
Amount paid to subsidiary	600,000	700,000
Long term debt, related party										$ 0
Beijing Tongmei Xtal Technology \| Related party loan \| ChaoYang XinMei High Purity Semiconductor Materials Co., Ltd
Related Party Transaction [Line Items]
Amount paid to subsidiary	800,000	1,100,000
Increase in noncontrolling interest	1,400,000
Beijing Tongmei Xtal Technology \| Loan from related party \| ChaoYang XinMei High Purity Semiconductor Materials Co., Ltd
Related Party Transaction [Line Items]
Amount of transaction			$ 1,400,000	$ 1,400,000
Short-term loan from noncontrolling interest			0
Amount paid to subsidiary	$ 800,000	$ 1,100,000
Increase in redeemable noncontrolling interests			200,000
Increase in noncontrolling interest			$ 2,200,000
ChaoYang XinMei High Purity Semiconductor Materials Co., Ltd
Related Party Transaction [Line Items]
Ownership (as a percent)	58.50%	58.50%	58.50%								58.50%	58.50%