Investments in Securities and Fair Value Schedule of Variable Interest Entities (Details) - Other Investments [Member]	Dec. 31, 2016 USD ($)
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	$ 8,962,753
Variable Interest Entity, Nonconsolidated, Fair Value, Amount, Assets	9,281,162
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	17,875,000
Variable Interest Entity, Not Primary Beneficiary, Tax Credit Lp [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	1,137,346
Variable Interest Entity, Nonconsolidated, Fair Value, Amount, Assets	1,137,346
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	1,325,000
Variable Interest Entity, Not Primary Beneficiary, Real Estate LLC or LP [Member] [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	4,691,173
Variable Interest Entity, Nonconsolidated, Fair Value, Amount, Assets	5,119,361
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	7,150,000
Variable Interest Entity, Not Primary Beneficiary, Small Business Investment LP [Member] [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets	3,134,234
Variable Interest Entity, Nonconsolidated, Fair Value, Amount, Assets	3,024,455
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	$ 9,400,000