Segment Information - Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Revenues	$ 62,288	$ 157,110
Sell-side advertising
Segment Reporting Information [Line Items]
Revenues	35,660	122,434
Buy-side advertising
Segment Reporting Information [Line Items]
Revenues	$ 26,628	$ 34,676

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details