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Significant Accounting Policies - Mutual Fund Administration Revenue (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue from External Customer [Line Items]
Total revenue	$ 182,193,837	$ 126,387,718	$ 136,624,380
Administration revenue, gross
Revenue from External Customer [Line Items]
Total revenue	29,635,451	22,296,535	22,569,946
Fund related expense
Revenue from External Customer [Line Items]
Expenses	(17,564,297)	(15,048,850)	(13,989,139)
Revenue, net of related expenses
Revenue from External Customer [Line Items]
Total revenue	12,071,154	7,247,685	8,580,807
Broker Commission
Revenue from External Customer [Line Items]
Total revenue	33,595	245,594	240,459
Expenses	(48,521)	(230,791)	(206,295)
Financing activity, net
Revenue from External Customer [Line Items]
Total revenue	(14,926)	14,803	34,164
Mutual fund administration revenue, net
Revenue from External Customer [Line Items]
Total revenue	$ 12,056,228	$ 7,262,488	$ 8,614,971

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