Schedule of notes payable.

No definition available.

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

- Definition

Amount of the required periodic payments applied to principal.

+ References

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-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-SubTopic 10
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-Publisher FASB
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+ Details

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

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

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-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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Balance Type:	credit
Period Type:	instant

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
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Period Type:

Notes Payable - Additional Information (Detail) - USD ($)	1 Months Ended	3 Months Ended			9 Months Ended		12 Months Ended
	Jul. 31, 2024	Mar. 31, 2025	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2025
Schedule Of Notes Payable [Line Items]
Interest expense, debt			$ 181,474	$ 486,079	$ 565,440	$ 1,444,540
Accrued interest payable current			$ 0		$ 0
Convertible Notes Payable
Schedule Of Notes Payable [Line Items]
Promissory note, monthly principal	$ 252,679
Forecast \| Convertible Notes Payable
Schedule Of Notes Payable [Line Items]
Promissory note, monthly principal		$ 652,678					$ 1,200,000