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v3.20.1

Related Party Transactions (Details) |  | 1 Months Ended | 3 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Nov. 02, 2017 USD ($) | Mar. 31, 2020 USD ($) ft² | May 31, 2019 USD ($) | Nov. 30, 2017 USD ($) | Jul. 31, 2017 USD ($) installment | Apr. 30, 2016 USD ($) | Mar. 31, 2020 USD ($) ft² | Mar. 31, 2019 USD ($) | Jun. 30, 2017 USD ($) | Dec. 31, 2019 USD ($) | Mar. 11, 2019 | Mar. 10, 2019
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of previously consolidated subsidiary shares |  |  |  |  |  |  | $ 366,000 | $ 366,000 |  |  |  |
Area of leased property (in square feet) | ft² |  | 19,467 |  |  |  |  | 19,467 |  |  |  |  |
Beijing JiYa Semiconductor Material Co., Ltd Investment |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership, consolidated method (in hundredths) |  |  |  |  |  |  |  |  |  |  | 39.00% | 46.00%
Equity investment entity | Raw materials sales to related party | Accounts receivable | Beijing JiYa Semiconductor Material Co., Ltd |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amounts receivable from related party |  | $ 235,000 |  |  |  |  | $ 235,000 |  |  | $ 12,000 |  |
Equity investment entity | Raw material agency sales agreement | Other income (expense), net | Nanjing JinMei Gallium Co., Ltd |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Other income from related party |  |  |  |  |  |  | 0 | 0 |  |  |  |
Donghai County Dongfang High Purity Electronic Materials Co., Ltd | Raw materials purchases from related party | Accounts payable | Beijing Tongmei Xtal Technology |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amount payable to related party |  | 0 |  |  |  |  | 0 |  |  | 0 |  |
Emei Shan Jiamei Materials Co., Ltd | Raw materials purchases from related party | Accounts payable | Beijing Tongmei Xtal Technology |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amount payable to related party |  | 0 |  |  |  |  | 0 |  |  | 0 |  |
Xilingol Tongli Germanium Co. Ltd | Raw materials purchases from related party | Accounts payable | Beijing Tongmei Xtal Technology |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amount payable to related party |  | $ 0 |  |  |  |  | $ 0 |  |  | 0 |  |
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 |  |  |  |  | 22,081 |  |  |  |  |
Lease term |  | 10 years |  |  |  |  | 10 years |  |  |  |  |
Annual lease payment |  |  |  |  |  |  | $ 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] |  |  |  |  |  |  |  |  |  |  |  |
Amount of transaction |  |  |  |  | $ 768,000 |  |  |  |  |  |  |
Number of installments | installment |  |  |  |  | 3 |  |  |  |  |  |  |
Amount payable to related party |  | $ 283,000 |  |  |  |  | $ 283,000 |  |  | 285,000 |  |
Interest rate (as a percent) |  |  |  |  | 4.90% |  |  |  |  |  |  |
Repayment of related party notes receivable |  |  |  |  |  |  | 481,000 |  |  |  |  |
Executive officer | Related party loan | Beijing BoYu Semiconductor Vessel Craftwork Technology Co |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amount of transaction |  | $ 141,000 | $ 146,000 | $ 291,000 |  | $ 177,000 |  |  |  |  |  |
Interest rate (as a percent) |  | 2.75% | 2.75% | 2.75% |  | 2.75% |  |  |  |  |  |
Repayment of related party notes receivable |  |  |  |  |  |  |  |  | $ 180,000 |  |  |
Executive officer | Related party loan | Other assets | Beijing BoYu Semiconductor Vessel Craftwork Technology Co |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Related party notes receivable - current |  | $ 586,000 |  |  |  |  | 586,000 |  |  | $ 449,000 |  |
3rd party investor | Beijing BoYu Semiconductor Vessel Craftwork Technology Co |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenue from related parties |  |  |  |  |  |  | $ 254,000 | $ 38,000 |  |  |  |
Raised additional capital | $ 2,000,000 |  |  |  |  |  |  |  |  |  |  |
Percentage ownership from issuance of shares | 10.00% |  |  |  |  |  |  |  |  |  |  |

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