Segment Information - Schedule of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Revenues	$ 21,855	$ 35,404	$ 44,130	$ 56,627
Total operating loss	(2,065)	2,255	(4,873)	2,114
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(3,415)	1,269	(7,436)	(139)
Operating Segments
Segment Reporting Information [Line Items]
Revenues	21,855	35,404	44,130	56,627
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Total operating loss	(4,360)	(3,841)	(8,423)	(6,765)
Other Nonoperating Expense	(1,350)	(986)	(2,563)	(2,253)
Sell-side advertising | Operating Segments
Segment Reporting Information [Line Items]
Revenues	14,298	23,601	30,799	37,384
Total operating loss	447	2,172	1,409	3,450
Buy-side advertising | Operating Segments
Segment Reporting Information [Line Items]
Revenues	7,557	11,803	13,331	19,243
Total operating loss	$ 1,848	$ 3,924	$ 2,141	$ 5,429