Commitments and contingencies.

No definition available.

Name:	tnya_CommitmentsAndContingenciesLineItems
Namespace Prefix:	tnya_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Lease expiration month and year end

+ References

No definition available.

+ Details

Name:	tnya_LeaseExpirationMonthAndYearEnd
Namespace Prefix:	tnya_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

- Definition

Lease initial expiration month and year.

+ References

No definition available.

+ Details

Name:	tnya_LeaseInitialExpirationMonthAndYear
Namespace Prefix:	tnya_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

- Definition

Lease termination fee.

+ References

No definition available.

+ Details

Name:	tnya_LeaseTerminationFee
Namespace Prefix:	tnya_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Lessee operating lease commenced.

+ References

No definition available.

+ Details

Name:	tnya_LesseeOperatingLeaseCommenced
Namespace Prefix:	tnya_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of lessee lease renewal term.

+ References

No definition available.

+ Details

Name:	tnya_NumberOfLeaseRenewalTerm
Namespace Prefix:	tnya_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of option remaining to extend the lease term.

+ References

No definition available.

+ Details

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Namespace Prefix:	tnya_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Security deposit forfeiture.

+ References

No definition available.

+ Details

Name:	tnya_SecurityDepositForfeiture
Namespace Prefix:	tnya_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of gain (loss) on termination of lease before expiration of lease term.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479092/842-20-40-1

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Indicates (true false) whether lessee has option to extend operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:booleanItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of terms and conditions of option to extend lessee's operating lease. Includes, but is not limited to, information about option recognized as part of right-of-use asset and lease liability.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average discount rate for operating lease calculated at point in time.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479589/842-20-55-53

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (g)(4)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479589/842-20-55-53

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-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (g)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Details

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Namespace Prefix:
Data Type:	na
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Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementGeographicalAxis=tnya_SouthSanFranciscoCaliforniaMember
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Commitments and Contingencies - Additional Information (Details) $ in Thousands	1 Months Ended			3 Months Ended	6 Months Ended
	Jun. 30, 2024 Option	Feb. 28, 2021 RenewalOption	Dec. 31, 2016	Jun. 30, 2026 USD ($)	Jun. 30, 2026 USD ($)	Dec. 31, 2025
Commitments And Contingencies [Line Items]
Loss on lease termination, net				$ 1,368	$ 1,368
Weighted-average remaining lease term				1 year 3 months 18 days	1 year 3 months 18 days	4 years 1 month 6 days
Weighted-average discount rate				8.10%	8.10%	9.10%
Union City, California
Commitments And Contingencies [Line Items]
Number of lease renewal term \| RenewalOption		1
Lease renewal term		5 years
Lease termination fee					$ 300
Security deposit forfeiture					1,800
Loss on lease termination, net				$ (1,400)	$ (1,400)
Lease commenced month and year		2021-05
Term of lease		10 years
Office and Laboratory Space \| South San Francisco, California
Commitments And Contingencies [Line Items]
Lease initial expiration month and year			2025-05
Lease renewal term			5 years
Lessee, Operating Lease, Existence of Option to Extend [true false]	true
Lease, option to extend					In June 2024, the Company amended the lease to extend the term to November 2027.
Lease expiration month and year, end	2027-11
Number of option remaining to extend the lease term \| Option	1