Note 4 - Other Recent Business Transactions or Events (Details Textual) - USD ($)								1 Months Ended	3 Months Ended			6 Months Ended			9 Months Ended
	Oct. 15, 2020	Sep. 30, 2020		Sep. 08, 2020	Sep. 04, 2020	Feb. 03, 2020	Mar. 22, 2019	Sep. 28, 2020	Sep. 30, 2020		Sep. 30, 2019	Sep. 30, 2020		Jun. 30, 2020	Sep. 30, 2020		Sep. 30, 2019	Dec. 31, 2020	Sep. 25, 2020	Jan. 31, 2020	Dec. 31, 2019	Oct. 31, 2019	Sep. 29, 2017	Oct. 03, 2016
Common Stock, Par or Stated Value Per Share (in dollars per share)		$ 0.01							$ 0.01			$ 0.01			$ 0.01						$ 0.01
Common Stock, Shares, Issued, Total (in shares)		1,204,110							1,204,110			1,204,110			1,204,110						1,193,624
Common Stock, Shares, Outstanding, Ending Balance (in shares)		1,204,110							1,204,110			1,204,110			1,204,110						1,193,624
Goodwill, Impairment Loss															$ 7,883,000
Proceeds from Issuance of Long-term Debt, Total															2,166,000
Repayments of Debt															9,163,000
Long-term Debt, Total		$ 64,400,000							64,400,000			$ 64,400,000			64,400,000						$ 48,861,000
Redeemable Financial Instruments		14,457,000							14,457,000			14,457,000			14,457,000						16,983,000
Payments for Redeemable Financial Instruments															2,421,000
JKD Capital Partners I, LTD [Member]
Redeemable Financial Instruments		$ 7,957,000							$ 7,957,000			$ 7,957,000			$ 7,957,000						$ 7,957,000
JKD Capital Partners I, LTD [Member] | Investment Agreement [Member]
Redeemable Financial Instruments																								$ 12,000,000
CBF [Member] | Investment Agreement [Member]
Redeemable Financial Instruments																			$ 6,500,000			$ 6,500,000	$ 8,000
Investment Agreement, Percentage of Investment Return on Investment Amount for Revenues Greater than Zero		20.00%							20.00%			20.00%			20.00%
Investment Agreement, Percentage of Investment Return on Business Revenue for Revenues Greater than Zero		15.20%							15.20%			15.20%			15.20%
Investment Agreement, Percentage of Investment Return on Investment Amount for Revenues with Zero or Less than Zero		3.75%							3.75%			3.75%			3.75%
DGC Trust [Member] | Investment Agreement [Member]
Redeemable Financial Instruments																			$ 2,000,000				$ 2,000,000
Payments for Redeemable Financial Instruments		$ 2,000,000
Paycheck Protection Program CARES Act [Member]
Proceeds from Issuance of Long-term Debt, Total												$ 2,166,000
Non-convertible Senior Notes 12.00% (2020 Senior Notes) [Member] | Non-convertible Senior Notes [Member]
Debt Instrument, Face Amount																				$ 4,500,000
Debt Instrument, Interest Rate, Stated Percentage		12.00%	[1]						12.00%	[1]		12.00%	[1]		12.00%	[1]				12.00%
Non-convertible Senior Notes 12.00% (2020 Senior Notes) [Member] | JKD Capital Partners I, LTD [Member] | Non-convertible Senior Notes [Member]
Debt Instrument, Face Amount																				$ 2,250,000
Debt Instrument, Interest Rate, Stated Percentage																				12.00%
Non-convertible Senior Notes 12.00% (2020 Senior Notes) [Member] | JKD Capital Partners I LTD and RN Capital Solutions LLC [Member] | Non-convertible Senior Notes [Member]
Debt Instrument, Face Amount																				$ 4,500,000
The 2019 Senior Notes [Member]
Repayments of Debt						$ 4,386,000
Long-term Debt, Total						$ 2,400,000
COVID-19 Pandemic [Member] | JVB Holdings [Member]
Goodwill, Impairment Loss														$ 7,883,000	$ 7,883,000
ViaNova [Member]
Other Investment Not Readily Marketable, Quoted Value		$ 2,300,000							$ 2,300,000			$ 2,300,000			2,300,000
Other Investment Not Readily Marketable, Fair Value		$ 2,243,000							$ 2,243,000			$ 2,243,000			$ 2,243,000
Subsequent Event [Member] | CBF [Member] | Investment Agreement [Member]
Redeemable Financial Instruments	$ 4,000,000
Payments for Redeemable Financial Instruments	$ 2,500,000
Investment Agreement, Percentage of Investment Return on Investment Amount for Revenues Greater than Zero	20.00%
Investment Agreement, Percentage of Investment Return on Business Revenue for Revenues Greater than Zero	9.40%
Investment Agreement, Percentage of Investment Return on Investment Amount for Revenues with Zero or Less than Zero	3.75%
Sponsor Entities [Member] | Insurance SPAC [Member]
Closing Share Price for Founder Shares to Become Transferable or Salable, Tranche One (in dollars per share)							$ 12
Founder Shares, Percent of Shares to Become Transferable or Salable Upon Consummation of Business Combination							20.00%
Closing Share Price for Founder Shares to Become Transferable or Salable, Tranche Two (in dollars per share)							$ 13.50
Closing Share Price for Founder Shares to Become Transferable or Salable, Tranche Three (in dollars per share)							15
Closing Share Price for Founder Shares to Become Transferable or Salable, Tranche Four (in dollars per share)							$ 17
Sponsor Entities [Member] | Private Placement [Member] | Insurance SPAC [Member]
Number of Placement Units Purchased (in shares)							375,000
Sponsor Entities [Member] | SFT Class A Common Stock [Member] | Forecast [Member]
Investment Owned, Balance, Shares (in shares)																		122,665
Sponsor Entities [Member] | SFT Warrants [Member] | Forecast [Member]
Investment Owned, Balance, Shares (in shares)																		61,332
Sponsor Entities [Member] | Sponsor Shares [Member] | Forecast [Member]
Investment Owned, Balance, Shares (in shares)																		2,019,721
Sponsor Entities [Member] | Subsequent Event [Member] | SFT Class A Common Stock [Member]
Investment Owned, Balance, Shares (in shares)	375,000
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.0001
Distribution Made to Noncontrolling Interest, Securities to be Distributed (in shares)	252,335
Sponsor Entities [Member] | Subsequent Event [Member] | SFT Warrants [Member]
Investment Owned, Balance, Shares (in shares)	187,500
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 11.50
Distribution Made to Noncontrolling Interest, Securities to be Distributed (in shares)	126,500
Sponsor Entities [Member] | Subsequent Event [Member] | Sponsor Shares [Member]
Investment Owned, Balance, Shares (in shares)	4,497,525
Sponsor Entities [Member] | Subsequent Event [Member] | Founder Shares [Member]
Distribution Made to Noncontrolling Interest, Securities to be Distributed (in shares)	2,477,803
Company's Subsidiary [Member] | Subsequent Event [Member] | SFT Class A Common Stock [Member]
Investment Owned, Balance, Shares (in shares)	600,000
Distribution Made to Noncontrolling Interest, Securities to be Distributed (in shares)	350,000
Investment Owned, Price Per Share (in dollars per share)	$ 10
Distribution Made to Parent's Wholly Owned Subsidiary, Securities to be Distributed (in shares)	250,000
SPAC II [Member]
Common Stock, Shares, Issued, Total (in shares)				31,386,667
Common Stock, Shares, Outstanding, Ending Balance (in shares)				31,386,667
SPAC II [Member] | Operating LLC [Member]
Commitments, Operating and Acquisition Expenses				$ 750,000
Office Space, Utilities, Support, and Administrative Services, Monthly Payment				$ 20,000
SPAC II [Member] | IPO [Member]
Common Stock, Par or Stated Value Per Share (in dollars per share)								$ 0.0001
Units Issued During Period, Units, New Issues (in shares)				23,000,000	3,000,000
Units Issued During Period, Shares Per Unit (in shares)								1
Units Issued During Period, Warrants Per Unit (in shares)								0.33
Shares Issued, Price Per Share (in dollars per share)				$ 10
Proceeds from Issuance or Sale of Equity, Total				$ 230,000,000
Proceeds From Issuance of Units, Trust Account				230,000,000
Payments of Equity Issuance Costs, Trust Account				$ 9,800,000
SPAC II [Member] | IPO [Member] | Warrants for SPAC II Common Stock [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)				$ 11.50
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)				1
SPAC II [Member] | IPO [Member] | Insurance Acquisition Sponsor II , LLC [Member]
Units Issued During Period, Units, New Issues (in shares)				452,500
Shares Issued, Price Per Share (in dollars per share)				$ 10
Proceeds from Issuance or Sale of Equity, Total				$ 4,525,000
SPAC II [Member] | IPO [Member] | Cantor Fitzgerald & Co. [Member]
Units Issued During Period, Units, New Issues (in shares)				87,500
Proceeds from Issuance or Sale of Equity, Total				$ 875,000
SPAC II [Member] | IPO [Member] | Operating LLC [Member]
Payments of Stock Issuance Costs				$ 75,000
SPAC II [Member] | IPO Over-Allotment Option [Member]
Units Issued During Period, Units, New Issues (in shares)				3,000,000
SPAC II Sponsor Entities [Member] | Founder Shares [Member]
Investment Owned, Balance, Shares (in shares)		7,846,667							7,846,667			7,846,667			7,846,667
Closing Share Price for Founder Shares to Become Transferable or Salable, Tranche One (in dollars per share)		$ 12							$ 12			$ 12			$ 12
Founder Shares, Percent of Shares to Become Transferable or Salable Upon Consummation of Business Combination		20.00%							20.00%			20.00%			20.00%
Closing Share Price for Founder Shares to Become Transferable or Salable, Tranche Two (in dollars per share)		$ 13.50							$ 13.50			$ 13.50			$ 13.50
Closing Share Price for Founder Shares to Become Transferable or Salable, Tranche Three (in dollars per share)		15							15			15			15
Closing Share Price for Founder Shares to Become Transferable or Salable, Tranche Four (in dollars per share)		$ 17							$ 17			$ 17			$ 17

[1] Represents the interest rate in effect as of the last day of the reporting period.