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Significant Accounting Policies - Revenues From Contracts with Customers (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 45,069,653	$ 28,248,929	$ 84,084,086	$ 60,174,674
Investment advisory
Disaggregation of Revenue [Line Items]
Revenue	41,716,427	26,698,993	78,285,530	56,856,673
Mutual fund administration revenue, net
Disaggregation of Revenue [Line Items]
Revenue	3,353,226	1,549,936	5,798,556	3,318,001
Proprietary funds
Disaggregation of Revenue [Line Items]
Revenue	33,805,700	21,272,678	62,761,731	46,495,306
Proprietary funds | Investment advisory
Disaggregation of Revenue [Line Items]
Revenue	30,452,474	19,722,742	56,963,175	43,177,305
Proprietary funds | Mutual fund administration revenue, net
Disaggregation of Revenue [Line Items]
Revenue	3,353,226	1,549,936	5,798,556	3,318,001
Sub-advised funds and separately managed accounts
Disaggregation of Revenue [Line Items]
Revenue	11,263,953	6,976,251	21,322,355	13,679,368
Sub-advised funds and separately managed accounts | Investment advisory
Disaggregation of Revenue [Line Items]
Revenue	11,263,953	6,976,251	21,322,355	13,679,368
Sub-advised funds and separately managed accounts | Mutual fund administration revenue, net
Disaggregation of Revenue [Line Items]
Revenue	$ 0	$ 0	$ 0	$ 0

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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