Note 19- Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Total, estimated fair value	$ 37,013	$ 35,666
Equity investments, at fair value (cost of $187 and $1,147, respectively)	131	179
Limited liability investments, at fair value	15,573	14,804
Real estate investments, at fair value (cost of $10,225 and $10,225, respectively)	10,662	10,662
Subordinated debt, at fair value	57,282	60,973
Fair Value, Recurring [Member]
Total, estimated fair value	37,013	35,666
Equity investments, at fair value (cost of $187 and $1,147, respectively)	131	179
Limited liability investments, at fair value	18,986	18,826
Real estate investments, at fair value (cost of $10,225 and $10,225, respectively)	10,662	10,662
Total assets	67,054	65,333
Subordinated debt, at fair value	57,282	60,973
Contingent consideration, at fair value	3,959	2,458
Stock-based compensation liabilities, at fair value	1,475	1,402
Total liabilities	62,716	64,847
Fair Value, Recurring [Member] | Interest Rate Swap [Member]
Derivative contract - interest rate swap	262	14
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Total, estimated fair value	0	0
Equity investments, at fair value (cost of $187 and $1,147, respectively)	131	171
Limited liability investments, at fair value	0	0
Real estate investments, at fair value (cost of $10,225 and $10,225, respectively)	0	0
Total assets	131	171
Subordinated debt, at fair value	0	0
Contingent consideration, at fair value	0	0
Stock-based compensation liabilities, at fair value	0	0
Total liabilities	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Interest Rate Swap [Member]
Derivative contract - interest rate swap	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Total, estimated fair value	37,013	35,666
Equity investments, at fair value (cost of $187 and $1,147, respectively)	0	8
Limited liability investments, at fair value	0	0
Real estate investments, at fair value (cost of $10,225 and $10,225, respectively)	0	0
Total assets	37,275	35,674
Subordinated debt, at fair value	57,282	60,973
Contingent consideration, at fair value	0	0
Stock-based compensation liabilities, at fair value	0	0
Total liabilities	57,282	60,987
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
Derivative contract - interest rate swap	262	14
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Total, estimated fair value	0	0
Equity investments, at fair value (cost of $187 and $1,147, respectively)	0	0
Limited liability investments, at fair value	3,413	4,022
Real estate investments, at fair value (cost of $10,225 and $10,225, respectively)	10,662	10,662
Total assets	14,075	14,684
Subordinated debt, at fair value	0	0
Contingent consideration, at fair value	3,959	2,458
Stock-based compensation liabilities, at fair value	1,475	1,402
Total liabilities	5,434	3,860
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Interest Rate Swap [Member]
Derivative contract - interest rate swap	0	0
Fair Value, Recurring [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Total, estimated fair value	0	0
Equity investments, at fair value (cost of $187 and $1,147, respectively)	0	0
Limited liability investments, at fair value	15,573	14,804
Real estate investments, at fair value (cost of $10,225 and $10,225, respectively)	0	0
Total assets	15,573	14,804
Subordinated debt, at fair value	0	0
Contingent consideration, at fair value	0	0
Stock-based compensation liabilities, at fair value	0	0
Total liabilities	0	0
Fair Value, Recurring [Member] | Fair Value Measured at Net Asset Value Per Share [Member] | Interest Rate Swap [Member]
Derivative contract - interest rate swap	0	0
US Government Agencies Debt Securities [Member]
Total, estimated fair value	15,301	16,223
US Government Agencies Debt Securities [Member] | Fair Value, Recurring [Member]
Total, estimated fair value	15,301	16,223
US Government Agencies Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Total, estimated fair value	0	0
US Government Agencies Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Total, estimated fair value	15,301	16,223
US Government Agencies Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Total, estimated fair value	0	0
US Government Agencies Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Total, estimated fair value	0	0
US States and Political Subdivisions Debt Securities [Member]
Total, estimated fair value	2,082	1,878
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member]
Total, estimated fair value	2,082	1,878
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Total, estimated fair value	0	0
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Total, estimated fair value	2,082	1,878
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Total, estimated fair value	0	0
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Total, estimated fair value	0	0
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member]
Total, estimated fair value	7,824	7,629
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member] | Fair Value, Recurring [Member]
Total, estimated fair value	7,824	7,629
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Total, estimated fair value	0	0
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Total, estimated fair value	7,824	7,629
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Total, estimated fair value	0	0
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member] | Fair Value, Recurring [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Total, estimated fair value	0	0
Asset-Backed Securities [Member]
Total, estimated fair value	1,694	445
Asset-Backed Securities [Member] | Fair Value, Recurring [Member]
Total, estimated fair value	1,694	445
Asset-Backed Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Total, estimated fair value	0	0
Asset-Backed Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Total, estimated fair value	1,694	445
Asset-Backed Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Total, estimated fair value	0	0
Asset-Backed Securities [Member] | Fair Value, Recurring [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Total, estimated fair value	0	0
Corporate Debt Securities [Member]
Total, estimated fair value	10,112	9,491
Corporate Debt Securities [Member] | Fair Value, Recurring [Member]
Total, estimated fair value	10,112	9,491
Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Total, estimated fair value	0	0
Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Total, estimated fair value	10,112	9,491
Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Total, estimated fair value	0	0
Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Total, estimated fair value	0	0
Common Stock [Member] | Fair Value, Recurring [Member]
Equity investments, at fair value (cost of $187 and $1,147, respectively)	131	171
Common Stock [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Equity investments, at fair value (cost of $187 and $1,147, respectively)	131	171
Common Stock [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Equity investments, at fair value (cost of $187 and $1,147, respectively)	0	0
Common Stock [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Equity investments, at fair value (cost of $187 and $1,147, respectively)	0	0
Common Stock [Member] | Fair Value, Recurring [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Equity investments, at fair value (cost of $187 and $1,147, respectively)	$ 0	0
Warrant [Member] | Fair Value, Recurring [Member]
Equity investments, at fair value (cost of $187 and $1,147, respectively)		8
Warrant [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Equity investments, at fair value (cost of $187 and $1,147, respectively)		0
Warrant [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Equity investments, at fair value (cost of $187 and $1,147, respectively)		8
Warrant [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Equity investments, at fair value (cost of $187 and $1,147, respectively)		0
Warrant [Member] | Fair Value, Recurring [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Equity investments, at fair value (cost of $187 and $1,147, respectively)		$ 0