Leases - non-cancelable operating lease agreement (Details) - CNY (¥) ¥ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Supplemental information related to operating leases
Operating lease right-of-use assets, net	¥ 13,818	¥ 27,365
Operating lease liabilities-current	(16,302)	(15,132)
Operating lease liabilities-non-current	(586)	(12,426)
Total operating lease liabilities	¥ (16,888)	¥ (27,558)
Weighted average remaining lease term	1 year 1 month 2 days	2 years 7 days
Weighted average discount rate	4.75%	4.75%

No definition available.

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
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Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

+ References

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

+ References

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Amount of lessee's right to use underlying asset under operating lease.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
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- Definition

Weighted average discount rate for operating lease calculated at point in time.

+ References

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-Publisher FASB
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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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