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Income Taxes (Details) - Schedule of deferred tax assets and deferred tax liability - CNY (¥) ¥ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Schedule of deferred tax assets and deferred tax liability [Abstract]
Allowance for doubtful accounts	¥ 5,084	¥ 2,126
Impairment loss on long-lived assets	27,289	32,263
Impairment loss on long-term investments	16,371	8,953
Accrued Liabilities	10,418
Deductible temporary difference related to advertising expenses	4,561	3,773
Deferred subsidy income	821	1,044
Net operating loss carrying forwards	291,750	231,357
Total deferred tax assets	356,294	279,516
Less: valuation allowance	(356,294)	(279,516)
Deferred tax assets, net

X

- Definition

Deductible temporary difference related to advertising expenses.

+ References

No definition available.

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- Definition

Accrued Liabilities.

+ References

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- Definition

Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

+ References

No definition available.

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred income.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 8
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-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from investments (excludes investments in subsidiaries and equity method investments).

+ References

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the allowance for doubtful accounts.

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