Exit of the Fintech Platform Business - Loss from Discontinued Operations (Details) - Discontinued Operations, Disposed of by Means Other than Sale, Spinoff - Fintech Platform - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023
Operating expenses:
Cost of service revenue (exclusive of amortization)	$ 316	$ 3,684
Selling, general and administrative	2,073	4,091
Research and development	1,664	5,645
Amortization	0	1,459
Net loss from discontinued operations	(3,627)	(11,322)
Service revenue
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Service revenue	$ 426	$ 3,557

Disposal Group, Including Discontinued Operation, Costs of Goods Sold Excluding Amortization

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Disposal Group, Including Discontinued Operation, Operating Expenses

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Amount of depreciation and amortization expense attributable to disposal group, including, but not limited to, discontinued operation.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 205
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Amount of general and administrative expense attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 205
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