Summary of Significant Accounting Policies - Summary of Revenue from Products and Services (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Net revenue	$ 16,841,035	$ 9,214,350	$ 40,094,427	$ 31,737,520
Percentage of total revenue	100.00%	100.00%	100.00%	100.00%
ValidClick Platform
Disaggregation of Revenue [Line Items]
Net revenue	$ 11,742,855	$ 6,239,406	$ 29,955,169	$ 24,966,122
Percentage of total revenue	69.70%	67.70%	74.70%	78.70%
IntentKey Platform
Disaggregation of Revenue [Line Items]
Net revenue	$ 5,098,180	$ 2,974,944	$ 10,139,258	$ 6,771,398
Percentage of total revenue	30.30%	32.30%	25.30%	21.30%