Statutory Reserves And Restricted Net Assets (Details) ¥ in Thousands, $ in Thousands	Dec. 31, 2020 CNY (¥)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 CNY (¥)
Disclosure Text Block Supplement [Abstract]
Percentage of after tax profit, transferred annually by PRC subsidiaries to general reserve fund	10.00%	10.00%
Annual after-tax profit to the general reserve, percentage	50.00%	50.00%
Statutory Accounting Practices, Statutory Capital and Surplus, Balance	¥ 18,352	$ 2,813	¥ 12,059
Restricted net assets	¥ 196,090	$ 30,052	¥ 21,723

The percentage of after tax profits appropriated to general reserve fund annually.

No definition available.

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- Definition

Represents the maximum percentage criteria expressed as a percentage of registered capital for the transfer of after-tax profit by subsidiaries in China to a general reserve fund. If the reserve fund exceeds the specified threshold of the registered capital, further appropriation is not required.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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- Definition

Total assets that cannot be used for operating purposes because of contract or regulatory requirements that are in effect for a period that extends beyond one year.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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- Definition

The amount of statutory capital and surplus (stockholders' equity) as of the balance sheet date using prescribed or permitted statutory accounting practices (rather than GAAP, if different) of the state or country.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(23)(c))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 505
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6486098&loc=d3e24708-158529

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