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Note 10 - Notes Payable - Schedule of Notes Payable at Face Value and Notes Payable to Related Parties (Details) (Parentheticals) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	[1]	Dec. 31, 2022	May 31, 2023	May 31, 2022	Jan. 31, 2021	Jun. 30, 2019	Dec. 31, 2018	Dec. 31, 2017	Oct. 31, 2015
Phoenix [Member]
Interest rate	8.00%		8.00%
Debt maturity	Aug. 26, 2024		Aug. 26, 2024
Revolving Credit Facility Expiring November 1, 2025 [Member]
Revolving credit facility, maximum borrowing capacity	$ 65.0		$ 65.0
Revolving credit facility, expiration date	Nov. 01, 2025		Nov. 01, 2025
Revolving Credit Facility [Member]
Amount of securing assets	$ 2,252.9		$ 1,856.2
Interest rate	6.30%		5.10%
Revolving Credit Facility Expiring October 30, 2025 [Member]
Revolving credit facility, maximum borrowing capacity	$ 50.0		$ 50.0							$ 50.0
Revolving credit facility, expiration date	Oct. 30, 2025		Oct. 30, 2025
Revolving Credit Facility Expiring December 15, 2025 [Member]
Revolving credit facility, maximum borrowing capacity	$ 100.0		$ 100.0					$ 100.0
Revolving credit facility, expiration date	Dec. 15, 2025		Dec. 15, 2025
Revolving Credit Facility Expiring July 20, 2025 [Member]
Revolving credit facility, maximum borrowing capacity	$ 50.0		$ 50.0						$ 50.0
Revolving credit facility, expiration date	Jul. 20, 2025		Jul. 20, 2025
Revolving Credit Facility Expiring December 11, 2024 [Member]
Revolving credit facility, maximum borrowing capacity	$ 20.0		$ 20.0				$ 20.0
Revolving credit facility, expiration date	Dec. 11, 2024		Dec. 11, 2024
Revolving Credit Facility Paid Off September 2023 [Member]
Revolving credit facility, maximum borrowing capacity	$ 200.0		$ 200.0
Revolving credit facility, pay off date	Sep. 30, 2023		Sep. 30, 2023
Revolving Credit Facility Paid Off November 2023 [Member]
Revolving credit facility, maximum borrowing capacity	$ 88.9		$ 88.9
Revolving credit facility, pay off date	Nov. 30, 2023		Nov. 30, 2023
Revolving Credit Facility Expiring October 15, 2025 [Member]
Revolving credit facility, maximum borrowing capacity	$ 250.0		$ 250.0
Revolving credit facility, expiration date	Oct. 15, 2025		Oct. 15, 2025
Revolving Credit Facility Expiring July 31, 2026 [Member]
Revolving credit facility, maximum borrowing capacity	$ 35.0		$ 35.0			$ 35.0
Revolving credit facility, expiration date	Jul. 31, 2026		Jul. 31, 2026
Revolving Credit Facility Expiring December 15, 2026 [Member]
Revolving credit facility, maximum borrowing capacity	$ 300.0		$ 300.0
Revolving credit facility, expiration date	Dec. 15, 2026		Dec. 15, 2026
Revolving Credit Facility Expiring September 1, 2025 [Member]
Revolving credit facility, maximum borrowing capacity	$ 75.0		$ 75.0
Revolving credit facility, expiration date	Sep. 01, 2025		Sep. 01, 2025
Revolving Credit Facility Expiring May 15, 2026 [Member]
Revolving credit facility, maximum borrowing capacity	$ 300.0		$ 300.0
Revolving credit facility, expiration date	May 15, 2026		May 15, 2026
Revolving Credit Facility Expiring January 15, 2029 [Member]
Revolving credit facility, maximum borrowing capacity	$ 250.0		$ 250.0		$ 250.0
Revolving credit facility, expiration date	Jan. 15, 2029		Jan. 15, 2029
Revolving Credit Facility Expiring August 25, 2024 [Member]
Revolving credit facility, maximum borrowing capacity	$ 100.0		$ 100.0
Revolving credit facility, expiration date	Aug. 05, 2024		Aug. 05, 2024
Revolving Credit Facility Expiring March 15, 2027 [Member]
Revolving credit facility, maximum borrowing capacity	$ 100.0		$ 100.0
Revolving credit facility, expiration date	Mar. 15, 2027		Mar. 15, 2027
Revolving Credit Facility Expiring May 26, 2026 [Member]
Revolving credit facility, maximum borrowing capacity	$ 20.0		$ 20.0	$ 20.0
Revolving credit facility, expiration date	May 26, 2026		May 26, 2026
Revolving Credit Facility Expiring February 15, 2028 [Member]
Revolving credit facility, maximum borrowing capacity	$ 300.0		$ 300.0
Revolving credit facility, expiration date	Feb. 15, 2028		Feb. 15, 2028
Revolving Credit Facility Expiring May 17, 2027 [Member]
Revolving credit facility, maximum borrowing capacity	$ 150.0		$ 150.0
Revolving credit facility, expiration date	May 17, 2027		May 17, 2027
[1] As of December 31, 2023, the Prime Rate was 8.50% and the Secured Overnight Financing Rate ("SOFR") was 5.38%.

X

- Definition

This line item represents aggregate carrying amount of receivables and other assets that provides security for structured financing notes, as of balance sheet date.

+ References

No definition available.

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+ References

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- Definition

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+ References

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- Definition

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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