XML 108 R90.htm IDEA: XBRL DOCUMENT v3.23.1
Income Taxes - Summary of Reconciliation Between Expenses of Income Taxes (Details)
¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2022
CNY (¥)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
CNY (¥)
Dec. 31, 2020
CNY (¥)
Income Tax Disclosure [Abstract]        
Loss before income tax ¥ (108,905) $ (15,790) ¥ (140,552) ¥ (224,989)
Income tax expense computed at PRC statutory rate (27,226) (3,947) (35,138)  
International tax rate differential 5,596 811 6,023  
Preferential tax rate 5,518 800 21,437  
Deferred tax items tax rate differential (5,399) (783) (22,935)  
Research and development super-deduction (28,463) (4,127) (32,595)  
Non-deductible expenses 4,367 633 8,092  
Deferred tax expense (679) (98) 0  
Non-taxable income (157) (23) 0  
Recognition of prior year tax loss 0 0 (4,851)  
Changes in valuation allowance 45,988 6,668 59,999  
Income tax expense ¥ (455) $ (66) ¥ 32 ¥ 86