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4. DISCONTINUED OPERATIONS - Summary of Income Statement (Details) $ in Thousands	9 Months Ended
	Jun. 30, 2025 USD ($)
Other income (expense)
Gain on disposal of assets	$ 2,865

X

- Definition

Disposal Group, Including Discontinued Operation Other income (expenses) Abstract

+ References

No definition available.

+ Details

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Namespace Prefix:	clsk_
Data Type:	xbrli:stringItemType
Balance Type:	na
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X

- Definition

Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

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Balance Type:	credit
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