Segment Information - Schedule of Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Total assets	$ 48,476	$ 70,672
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Total assets	10,614	13,779
Sell-side advertising | Operating Segments
Segment Reporting Information [Line Items]
Total assets	15,302	34,354
Buy-side advertising | Operating Segments
Segment Reporting Information [Line Items]
Total assets	$ 22,560	$ 22,539