CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - CNY (¥) ¥ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Allocated Share-based Compensation Expense	¥ 768	¥ 29,748	¥ 2,970
Cost of Revenues
Allocated Share-based Compensation Expense	101	146	317
Selling and Marketing Expense
Allocated Share-based Compensation Expense	14	14,278	674
General and Administrative Expense
Allocated Share-based Compensation Expense	¥ 681	¥ 15,324	¥ 1,979

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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