CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Net revenue	$ 22,235	$ 20,921	$ 44,297	$ 43,099
Cost of revenue	6,290	6,327	12,366	13,634
Gross profit	15,945	14,594	31,931	29,465
Operating expenses:
Sales and marketing	9,265	9,791	18,434	19,596
Technology development	5,470	6,889	10,215	12,684
General and administrative	6,882	7,463	13,892	15,551
Provision for transaction losses	822	888	1,236	2,252
Total operating expenses	22,439	25,031	43,777	50,083
Loss from operations	(6,494)	(10,437)	(11,846)	(20,618)
Other income, net:
Interest income	1,646	1,645	3,338	3,176
Other, net	415	472	772	989
Total other income, net	2,061	2,117	4,110	4,165
Net loss before income taxes	(4,433)	(8,320)	(7,736)	(16,453)
Provision for income taxes	(4)	0	(4)	0
Net loss	$ (4,437)	$ (8,320)	$ (7,740)	$ (16,453)
Net loss per share—basic (in usd per share)	$ (0.12)	$ (0.21)	$ (0.20)	$ (0.42)
Net loss per share—diluted (in usd per share)	$ (0.12)	$ (0.21)	$ (0.20)	$ (0.42)
Weighted average common shares outstanding—basic (in shares)	38,517,785	39,642,725	39,131,456	39,487,496
Weighted average common shares outstanding—diluted (in shares)	38,517,785	39,642,725	39,131,456	39,487,496