Name:	us-gaap_AccountsPayableAndOtherAccruedLiabilitiesCurrent
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

Name:	us-gaap_AccruedLiabilitiesAndOtherLiabilitiesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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Period Type:	duration

Amount of deferred income excluding obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as current.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
-Section 25
-Paragraph 2
-SubTopic 10
-Topic 470
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481174/470-10-25-2

Name:	us-gaap_DeferredIncomeCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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The current portion, due within one year or one operating cycle, if longer, of deposits held other than customer deposits.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(20))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Name:	us-gaap_DepositLiabilityCurrent
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Period Type:	instant

Amount of liabilities incurred and payable to vendors for goods and services received classified as other, and expenses incurred but not yet paid, payable within one year or the operating cycle, if longer.

No definition available.

Name:	us-gaap_OtherAccountsPayableAndAccruedLiabilities
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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Represents the amount of deferred IPO expenses.

No definition available.

Name:	zybt_DeferredIPOExpenses
Namespace Prefix:	zybt_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Amount of maintenance fee payables.

No definition available.

Name:	zybt_MaintenanceFeePayables
Namespace Prefix:	zybt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of reimbursement payables.

No definition available.

Name:	zybt_ReimbursementPayables
Namespace Prefix:	zybt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of social welfare payables.

No definition available.