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Inventories - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Chemistry Technologies
Inventory
Provision for excess and obsolete inventory	$ 100	$ 300
Data Analytics
Inventory
Provision for excess and obsolete inventory	$ 13	$ 13

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- Definition

Inventory Valuation Provision

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
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Period Type:	duration

X

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=ftk_DataAnalyticsSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: