Represents the maximum amount of milestone payments to be paid under license agreement.

No definition available.

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Namespace Prefix:	tlph_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the percentage of of royalty payments based on net sales and milestone payments.

+ References

No definition available.

+ Details

Name:	tlph_LicenseAgreementPercentageOfRoyaltyPaymentsBasedOnNetSalesAndMilestonePayments
Namespace Prefix:	tlph_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the percentage of royalty payments excluding Department of Defense sales and milestone payments.

+ References

No definition available.

+ Details

Name:	tlph_LicenseAgreementPercentageOfRoyaltyPaymentsExcludingDepartmentOfDefenseSalesAndMilestonePayments
Namespace Prefix:	tlph_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the threshold payments relating to product for license agreements.

+ References

No definition available.

+ Details

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Namespace Prefix:	tlph_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of non-cash interest expense recognized.

+ References

No definition available.

+ Details

Name:	tlph_NoncashInterestExpenseRecognized
Namespace Prefix:	tlph_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of noncash revenue.

+ References

No definition available.

+ Details

Name:	tlph_NoncashRevenue
Namespace Prefix:	tlph_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the cash inflow from sale of receivables.

+ References

No definition available.

+ Details

Name:	tlph_ProceedsFromSaleOfReceivables
Namespace Prefix:	tlph_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the transaction costs from sales of receivables.

+ References

No definition available.

+ Details

Name:	tlph_TransactionCostsFromSaleOfReceivables
Namespace Prefix:	tlph_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of revenue and income classified as other.

+ References

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+ Details

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

- Definition

The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 10
-Name Accounting Standards Codification
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-Subparagraph (b)
-Publisher FASB
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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Namespace Prefix:
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Period Type:

- Details

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Note 6 - Sale of Future Payments (Details Textual) - XOMA [Member] - USD ($) $ in Thousands		1 Months Ended	12 Months Ended
	Jan. 12, 2024	Jan. 31, 2024	Dec. 31, 2025	Dec. 31, 2024
Proceeds From Sale of Receivables	$ 8,000	$ 8,000
License Agreement, Percentage of Royalty Payments Based on Net Sales and Milestone Payments		100.00%
License Agreement, Milestone Payments to be Paid, Maximum		$ 116,500
License Agreement, Threshold Payments Relating to Product		20,000
Transaction Costs From Sale of Receivables				$ 500
Other Income	$ 1,200	1,200
Proceeds from Debt, Net of Issuance Costs		6,600
Debt Instrument, Interest Rate, Effective Percentage			0.00%
Noncash Revenue				0
Noncash Interest Expense Recognized			$ 0	$ 394
Agreement After Stepdown Date [Member]
Proceeds From Sale of Receivables		$ 1,400
License Agreement, Percentage of Royalty Payments Based on Net Sales and Milestone Payments		50.00%
License Agreement, Percentage of Royalty Payments Excluding Department of Defense Sales and Milestone Payments		100.00%
Transaction Costs From Sale of Receivables		$ 200