SIGNIFICANT BALANCE SHEET COMPONENTS - Other Current Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Other Current Assets
Expensify Card posted collateral for funds held for customers	$ 12,415	$ 21,668
Earned interchange restricted cash	1,442	0
Deferred contract acquisition costs	339	129
Income tax receivable	429	2,993
Other restricted cash	136	80
Other	160	114
Other current assets	20,908	30,978
Expensify Payments LLC restricted cash \| Related Party
Other Current Assets
Restricted cash	15	113
Subsidiaries \| Expensify.org restricted cash
Other Current Assets
Restricted cash	$ 5,972	$ 5,881

Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3)(a)(4))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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