2. Fair Value on a Recurring Basis (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Assets [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	$ 10,470	$ 17,883
Assets [Member] | Fair Value, Inputs, Level 1 [Member] | Trading Securities - Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0	0
Assets [Member] | Fair Value, Inputs, Level 1 [Member] | Trading Securities - Equity [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	10,470	17,140
Assets [Member] | Fair Value, Inputs, Level 1 [Member] | Investments - Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0	0
Assets [Member] | Fair Value, Inputs, Level 1 [Member] | Investments - Common Stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets		743
Assets [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	90,350	94,600
Assets [Member] | Fair Value, Inputs, Level 2 [Member] | Trading Securities - Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	88,963	93,843
Assets [Member] | Fair Value, Inputs, Level 2 [Member] | Trading Securities - Equity [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0	0
Assets [Member] | Fair Value, Inputs, Level 2 [Member] | Investments - Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	1,387	757
Assets [Member] | Fair Value, Inputs, Level 2 [Member] | Investments - Common Stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets		0
Assets [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0	0
Assets [Member] | Fair Value, Inputs, Level 3 [Member] | Trading Securities - Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0	0
Assets [Member] | Fair Value, Inputs, Level 3 [Member] | Trading Securities - Equity [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0	0
Assets [Member] | Fair Value, Inputs, Level 3 [Member] | Investments - Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0	0
Assets [Member] | Fair Value, Inputs, Level 3 [Member] | Investments - Common Stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets		0
Liability [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0	0
Liability [Member] | Fair Value, Inputs, Level 1 [Member] | Profit Interest Units [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0	0
Liability [Member] | Fair Value, Inputs, Level 1 [Member] | Series A Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0	0
Liability [Member] | Fair Value, Inputs, Level 1 [Member] | Series B Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0
Liability [Member] | Fair Value, Inputs, Level 1 [Member] | Embedded Derivative Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0	0
Liability [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	3,201	4,159
Liability [Member] | Fair Value, Inputs, Level 2 [Member] | Profit Interest Units [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	591	591
Liability [Member] | Fair Value, Inputs, Level 2 [Member] | Series A Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	2,610	3,568
Liability [Member] | Fair Value, Inputs, Level 2 [Member] | Series B Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0
Liability [Member] | Fair Value, Inputs, Level 2 [Member] | Embedded Derivative Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0	0
Liability [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	27,913	17,974
Liability [Member] | Fair Value, Inputs, Level 3 [Member] | Profit Interest Units [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0	0
Liability [Member] | Fair Value, Inputs, Level 3 [Member] | Series A Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	0	0
Liability [Member] | Fair Value, Inputs, Level 3 [Member] | Series B Warrants [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	6,231
Liability [Member] | Fair Value, Inputs, Level 3 [Member] | Embedded Derivative Liability [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	$ 21,682	$ 17,974