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Balance Sheet Components - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Condensed Consolidated Balance Sheet Components [Abstract]
Depreciated demonstration and tooling aggregate carrying amount			$ 24,400,000
Proceeds from disposal of property and equipment			0
Depreciation and amortization	$ 1,100,000	$ 1,200,000	$ 3,259,000	$ 3,261,000

X

- Definition

The total value of demonstration units and tooling that have lost value due to depreciation over time. This amount reflects the cumulative depreciation expense recognized, helping the company accurately represent these assets' current worth on its financial statements.

+ References

No definition available.

+ Details

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Namespace Prefix:	tbch_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Condensed Consolidated Balance Sheet Components [Abstract]

+ References

No definition available.

+ Details

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Namespace Prefix:	tbch_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Section 45
-Paragraph 12
-Subparagraph (c)
-Publisher FASB
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