Description of Business and Summary of Significant Accounting Policies - Reconciliation of Cash and Cash Equivalents (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cash and cash equivalents	$ 2,137,580	$ 2,159,698	$ 4,611,877
Prepaid card load assets	528,434	535,479	188,677
Merchant reserves	10,016,904	12,645,803	14,977,468
Total	$ 12,682,918	$ 15,340,980	$ 19,778,022