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Related Party Transactions (Details)	1 Months Ended											3 Months Ended			9 Months Ended	12 Months Ended
Related Party Transactions (Details)	Jul. 31, 2022 USD ($)	May 31, 2022 USD ($)	Apr. 30, 2022 USD ($)	Jan. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Oct. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Jul. 31, 2021 USD ($)	Jan. 31, 2021 USD ($)	Jul. 31, 2017 USD ($) installment	Mar. 31, 2012 USD ($) ft²	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Sep. 30, 2022 USD ($) ft²	Dec. 31, 2020 USD ($)	May 31, 2021	Feb. 28, 2021
Related Party Transaction [Line Items]
Area of leased property (in square feet) \| ft²															19,467
Investment in subsidiary with noncontrolling interest												$ 1,179,000	$ 575,000	$ 576,000
Beijing Tongmei Xtal Technology
Related Party Transaction [Line Items]
Percentage of ownership, consolidated method (in hundredths)													85.50%
Increase in redeemable noncontrolling interests									$ 1,500,000							$ 48,100,000
Related party loan \| Chao Yang XinMei High Purity Semiconductor Materials Co. Ltd.
Related Party Transaction [Line Items]
Increase in redeemable noncontrolling interests		$ 100,000
Loan from related party \| Chao Yang XinMei High Purity Semiconductor Materials Co. Ltd.
Related Party Transaction [Line Items]
Increase in redeemable noncontrolling interests		100,000
Investment in subsidiary with noncontrolling interest			$ 4,500,000
Loan from related party \| Chao Yang XinMei High Purity Semiconductor Materials Co. Ltd. \| Beijing Tongmei Xtal Technology
Related Party Transaction [Line Items]
Increase in noncontrolling interest		1,400,000
ChaoYang XinMei
Related Party Transaction [Line Items]
Investment in subsidiary with noncontrolling interest			4,500,000
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										$ 100,000
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 \| Chao Yang 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 \| Chao Yang 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
Investment in subsidiary with noncontrolling interest			1,900,000
Beijing Tongmei Xtal Technology \| Related party loan \| Chao Yang 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 \| Chao Yang 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
Investment in subsidiary with noncontrolling interest			$ 2,600,000
Chao Yang 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%	58.50%
Increase in noncontrolling interest	$ 610,000
Further investment	600,000
Redeemable noncontrolling interest increased	57,000
Chao Yang XinMei High Purity Semiconductor Materials Co. Ltd. \| Beijing Tongmei Xtal Technology
Related Party Transaction [Line Items]
Further investment	$ 800,000