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Business Acquisitions and Investments (Details) - Foshan GWO YNG SMP Vehicle Climate Control & Cooling Products Co. Ltd. [Member] $ in Millions | 1 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2018 USD ($) | Mar. 31, 2019 | Mar. 31, 2018 CNY (¥) | Apr. 30, 2014 USD ($)
Business Combination, Description [Abstract] |  |  |  |
Percentage of equity interest acquired in joint venture | 15.00% | 65.00% | 15.00% | 50.00%
Investment in unconsolidated affiliates | $ 4.2 |  | ¥ 26,475,583 | $ 14.0
Purchase price payment | $ 0.7 |  |  |

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