Summary of Significant Accounting Policies - Summary of Revenue from Products and Services (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Net revenue	$ 7,590,187	$ 14,047,907	$ 22,523,170	$ 29,512,476
Percentage of total revenue	100.00%	100.00%	100.00%	100.00%
ValidClick Platform
Disaggregation of Revenue [Line Items]
Net revenue	$ 5,649,725	$ 12,077,922	$ 18,726,715	$ 26,265,946
Percentage of total revenue	74.40%	86.00%	83.10%	89.00%
IntentKey Platform
Disaggregation of Revenue [Line Items]
Net revenue	$ 1,940,462	$ 1,969,985	$ 3,796,455	$ 3,246,530
Percentage of total revenue	25.60%	14.00%	16.90%	11.00%
Mobile
Disaggregation of Revenue [Line Items]
Net revenue	$ 2,751,044	$ 8,823,577	$ 10,426,026	$ 19,370,199
Desktop
Disaggregation of Revenue [Line Items]
Net revenue	4,610,097	4,935,654	11,497,340	9,530,276
Other
Disaggregation of Revenue [Line Items]
Net revenue	$ 229,046	$ 288,676	$ 599,804	$ 612,001