Number of warrants or rights exercised during the period.

No definition available.

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Namespace Prefix:	tlph_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Exercise price per share of warrants or rights exercised during period.

+ References

No definition available.

+ Details

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Namespace Prefix:	tlph_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Price per warrant issued during period.

+ References

No definition available.

+ Details

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Namespace Prefix:	tlph_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of warrants or rights exercisable.

+ References

No definition available.

+ Details

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Namespace Prefix:	tlph_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of shares of stock issued during the period pursuant to exercise of warrants.

+ References

No definition available.

+ Details

Name:	tlph_StockIssuedDuringPeriodSharesWarrantsExercised
Namespace Prefix:	tlph_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(4))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

+ Details

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

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

+ Details

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

- Definition

Number of warrants or rights outstanding.

+ References

No definition available.

+ Details

Name:	us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=tlph_April2025PrefundedWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=tlph_PrefundedWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=tlph_PrefundWarrantsMember
Namespace Prefix:
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Balance Type:
Period Type:

Note 7 - Warrants (Details Textual) - $ / shares			6 Months Ended
Note 7 - Warrants (Details Textual) - $ / shares	Apr. 01, 2026	Mar. 13, 2026	Jun. 30, 2026	Dec. 31, 2025
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)				$ 0.72
Class of Warrant or Right, Exercised			1,828,000
Class of Warrant or Right, Exercised During Period, Exercise Price			$ 0.001
Issuance of common stock upon cashless exercise of pre-funded warrants (in shares)	1,825,478
Class of Warrant or Right, Outstanding			43,890,344	39,319,028
Class of Warrants or Right, Exercisable			43,890,344
April 2025 Prefunded Warrants [Member]
Class of Warrant or Right, Issued During Period, Price Per Warrant		$ 0.585
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		6,399,316
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)		$ 0.001	$ 0.001
Pre-funded Warrants [Member]
Class of Warrant or Right, Issued During Period, Price Per Warrant		$ 0.585
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		6,399,316
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)		$ 0.001
Class of Warrant or Right, Exercised	1,828,000
Class of Warrant or Right, Exercised During Period, Exercise Price	$ 0.001
Class of Warrant or Right, Outstanding			23,624,768
Prefund Warrants [Member]
Class of Warrants or Right, Exercisable			23,624,768