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Note 16 - Subsequent Events (Details Textual) - USD ($)		3 Months Ended
	Oct. 26, 2020	Jun. 30, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Oct. 02, 2020	Sep. 30, 2020	Dec. 31, 2019
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)							$ 9.95	$ 9.95
Stock Issued During Period, Value, New Issues		$ 59,549,751	$ 14,622,665	$ 10,742,156	$ 3,864,701
Common Class A [Member]
Common Stock, Par or Stated Value Per Share (in dollars per share)							1	1
Common Class B [Member]
Common Stock, Par or Stated Value Per Share (in dollars per share)							$ 1	$ 1
Subsequent Event [Member] | Common Class A [Member]
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.0001
Subsequent Event [Member] | Yellowstone [Member]
Proceeds from Issuance Initial Public Offering	$ 125,000,000
Subsequent Event [Member] | Yellowstone [Member] | Class A Common Stock Warrant [Member]
Number of Warrants Called by Each Unit (in shares)	1
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)	1
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 11.50
Subsequent Event [Member] | Yellowstone [Member] | Private Placement Warrants [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 1.00
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)	7,500,000
Proceeds from Issuance of Warrants	$ 7,500,000
Subsequent Event [Member] | Yellowstone [Member] | Common Class A [Member]
Proceeds to Redeem Common Stock Contingent on Business Combination Consummation	$ 127,500,000
Subsequent Event [Member] | Yellowstone [Member] | Common Class B [Member]
Stock Issued During Period, Shares, New Issues (in shares)	3,593,750
Number of Shares Subject to Forfeiture upon Exercise of Over-allotment Option (in shares)	468,750
Stock Issued During Period, Value, New Issues	$ 25,000
Subsequent Event [Member] | IPO [Member] | Yellowstone [Member]
Number of Units Issued (in shares)	12,500,000
Number of Securities Called by Each Unit (in shares)	1
Sale of Unit, Price Per Unit (in dollars per share)	$ 10.00
Subsequent Event [Member] | Dream Finders Holdings, LLC [Member] | Term Loan Receivable [Member]
Notes Receivable, Related Parties						$ 20,000,000
Note Receivable, Interest Rate						14.00%

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