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Income Tax (Details) - Schedule of actual income tax expenses reported in consolidated statements of comprehensive income(loss) - CNY (¥) ¥ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Schedule of actual income tax expenses reported in consolidated statements of comprehensive income(loss) [Abstract]
Income/(loss) before income taxes	¥ (406,980)	¥ (215,461)	¥ 67,899
Computed expected tax expense/(benefit)	(86,039)	(53,809)	16,975
Increase/(decrease) in income taxes resulting from:
Non-taxable income		(816)
Non-taxable income due to disposal of subsidiaries		(2,440)
Non-deductible expenses	6,463	25,099	1,766
Additional deduction for research and development expenses	(6,554)	(2,353)	(283)
Preferential tax rate	4,727	11,370	166
Tax loss expired	12,128	6,271	1,619
EIT true-up difference		478
Tax rate differential on deferred tax items		31	5,152
Change in valuation allowance	75,078	25,457	(10,355)
Others		320	(586)
Total	¥ 5,803	¥ 9,608	¥ 14,454

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- Definition

Computed expected tax expense/(benefit).

+ References

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- Definition

Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit).

+ References

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- Definition

Amount of increase (decrease) of additional deduction for research and development expenses.

+ References

No definition available.

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- Definition

Increase (Decrease) in EIT true-up difference.

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- Definition

Amount of increase (decrease) of non-deductible expenses.

+ References

No definition available.

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- Definition

Amount of increase (decrease) of non-taxable income.

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- Definition

Amount of increase (decrease) of non-taxable income due to disposal of subsidiaries.

+ References

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- Definition

Amount of increase (decrease) of preferential tax rate.

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- Definition

Amount of increase (decrease) of tax loss expired.

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- Definition

Tax rate differential on deferred tax items.

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- Definition

Amount, before tax, of income (loss) attributable to parent. Includes, but is not limited to, income (loss) from continuing operations, discontinued operations and equity method investments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.20)
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

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