XML 91 R74.htm IDEA: XBRL DOCUMENT
v3.21.1

Prepayments and other assets (Details) - Schedule of prepayments and other assets - CNY (¥) ¥ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Prepayments and other current assets |  |  |
Receivables from third-party payment channels | [1] | ¥ 17,983 | ¥ 17,420
Cash advanced to employees |  | 517 | 275
Prepaid advertising and marketing fees |  | 1,056 | 8,376
Prepaid rental and property management fees |  | 3,109 | 12,528
Prepayment for purchase of office supplies |  | 534 | 2,460
Books and other related educational materials | [2] | 9,254 | 10,131
Prepayment for acquisition of subsidiaries |  | 3,085 | 4,379
Prepaid taxes |  | 4,837 | 3,704
Others |  | 10,283 | 5,517
Total |  | 50,658 | 64,790
Long-term prepayments and other non-current assets |  |  |
Prepayment for leasehold improvement |  | 50 | 10,923
Long-term rental deposits |  | 40,704 | 51,512
Total |  | ¥ 40,754 | ¥ 62,435
[1] | The balances represent the course fee for the courses due from third-party payment channels that are mainly due to timing difference between the Group’s receipts from the third-party payment channels versus the third-party payment channels’ cash receipts from the customers.
[2] | Inventories are stated at the lower of cost and net realizable value. Cost is determined using the first-in, first-out method (FIFO) for all inventories.

X
- References No definition available. + Details
Name: | metx_CashAdvancedToEmployees
Namespace Prefix: | metx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | metx_LongTermPrepaymentsAndOtherNonCurrentAssetsAbstract
Namespace Prefix: | metx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | metx_LongtermPrepaymentsAndOtherNon-currentAssets
Namespace Prefix: | metx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Long-term rental deposits. + References No definition available. + Details
Name: | metx_LongtermRentalDeposits
Namespace Prefix: | metx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Prepaid rental and property management fees. + References No definition available. + Details
Name: | metx_PrepaidRentalAndPropertyManagementFees
Namespace Prefix: | metx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of asset related to consideration paid in advance for income and other taxes that provide economic benefits within a future period of one year or the normal operating cycle, if longer. + References No definition available. + Details
Name: | metx_PrepaidTaxe
Namespace Prefix: | metx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Prepayment for acquisition of subsidiaries. + References No definition available. + Details
Name: | metx_PrepaymentForAcquisitionOfSubsidiaries
Namespace Prefix: | metx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | metx_PrepaymentsAndOtherCurrentAssetsAbstract
Namespace Prefix: | metx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Prepayments and other current assets other. + References No definition available. + Details
Name: | metx_PrepaymentsAndOtherCurrentAssetsOther
Namespace Prefix: | metx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | metx_ReceivablesFromThirdpartyPaymentChannels
Namespace Prefix: | metx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 4 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6812-107765 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
Name: | us-gaap_LeaseholdImprovementsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The total expense recognized in the period for promotion, public relations, and brand or product advertising. + 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 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
Name: | us-gaap_MarketingAndAdvertisingExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The carrying amount of capitalized costs of materials, supplies, and other assets, which are not included in inventory but used in production. + References No definition available. + Details
Name: | us-gaap_MaterialsSuppliesAndOther
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of assets classified as other. + 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 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: 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)(10)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
Name: | us-gaap_OtherAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of consideration paid in advance for supplies that provide economic benefits within a future period of one year or the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (g)(7) -URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 10 -Section 05 -Paragraph 5 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=68074540&loc=d3e5879-108316 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6787-107765 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6387103&loc=d3e6435-108320 + Details
Name: | us-gaap_Supplies
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant