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Intangible Assets, Net - Summary of Intangible Assets (Details)
¥ in Thousands, $ in Thousands
Dec. 31, 2019
CNY (¥)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
CNY (¥)
Finite Lived Intangible Assets [Line Items]      
Less: Accumulated amortization ¥ (3,361)   ¥ (2,388)
Intangible assets, net 1,176 $ 169 1,369
Computer Software      
Finite Lived Intangible Assets [Line Items]      
Intangible assets, gross 3,757   ¥ 3,757
License      
Finite Lived Intangible Assets [Line Items]      
Intangible assets, gross ¥ 780