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Information pertaining to the agreement.

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Maximum borrowing capacity under the credit facility after the accordion feature increase.

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Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Note 7 - Borrowings (Details Textual) - USD ($) $ / shares in Units, $ in Thousands										3 Months Ended
	Apr. 25, 2025	Apr. 17, 2025	Oct. 17, 2024	Jun. 21, 2024	Jun. 20, 2024	Jun. 19, 2024	May 06, 2024	May 24, 2023	Apr. 21, 2020	Mar. 31, 2025	Mar. 31, 2024	Mar. 30, 2025	Dec. 31, 2024	Dec. 31, 2023	Jun. 29, 2023	Nov. 09, 2022	Jun. 15, 2022	Mar. 30, 2021
Asset Coverage to Borrowings, Ratio, Percent										165.00%
Restricted Investments										$ 3,463			$ 3,338
Long-Term Debt, Gross										471,008			472,078
Debt Instrument, Face Amount										$ 700,008			$ 716,078
Share Price (in dollars per share)										$ 9.42	$ 11.37		$ 8.99	$ 13.17
Debt Instrument, Convertible, Maximum Beneficial Ownership Percentage			4.99%
Key Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity, Accordian Feature															$ 150,000
Line of Credit Facility, Maximum Borrowing Capacity															$ 300,000
Line of Credit Facility, Advance Rate of Eligible Debt Investments															60.00%
Long-Term Debt, Weighted Average Interest Rate, over Time										7.60%	8.75%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage										0.75%
Line of Credit Facility, Current Borrowing Capacity										$ 150,000			$ 150,000
Line of Credit Facility, Remaining Borrowing Capacity										38,500			24,800
Long-Term Debt, Gross										0			0
Debt Instrument, Face Amount										$ 150,000			$ 150,000
Key Facility [Member] \| Prime Rate [Member]
Debt Instrument, Basis Spread on Variable Rate					0.10%	0.25%
Debt Instrument, Variable Rate										7.50%			7.50%
NYL Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity								$ 250,000	$ 100,000
Line of Credit Facility, Current Borrowing Capacity										$ 69,000			$ 69,000
Line of Credit Facility, Remaining Borrowing Capacity										13,500			8,400
Line of Credit Facility, Maximum Borrowing Capacity, Accordion Feature									$ 200,000
Line of Credit Facility, Advance Rate									67.00%
Line of Credit Facility, Change in Maximum Borrowing Capacity								$ 50,000
Debt Instrument, Interest Rate, Stated Percentage							4.60%	4.60%
Long-Term Line of Credit										$ 181,000			$ 181,000
Line of Credit Facility, Interest Rate at Period End										6.54%			6.18%
Restricted Investments										$ 1,400			$ 1,400
Long-Term Debt, Gross										181,000			181,000
Debt Instrument, Face Amount										250,000			250,000
NYL Facility [Member] \| Subsequent Event [Member]
Debt Instrument, Basis Spread on Variable Rate	2.95%
NYL Facility [Member] \| Three Year I Curve [Member]
Debt Instrument, Basis Spread on Variable Rate							3.20%	3.50%
Nuveen Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity, Accordian Feature				$ 200,000
Line of Credit Facility, Maximum Borrowing Capacity				$ 100,000
Line of Credit Facility, Current Borrowing Capacity										10,000			25,000
Line of Credit Facility, Remaining Borrowing Capacity										10,000			9,900
Line of Credit Facility, Advance Rate				67.50%
Long-Term Line of Credit										$ 90,000	$ 0		75,000
Line of Credit Facility, Interest Rate at Period End										7.21%
Restricted Investments										$ 1,200			1,000
Long-Term Debt, Gross										90,000			75,000
Debt Instrument, Face Amount										100,000			100,000
Nuveen Facility [Member] \| Selected Interest Rates (Daily) [Member]
Debt Instrument, Basis Spread on Variable Rate				3.15%
Asset-backed Notes 2022 [Member]
Debt Instrument, Interest Rate, Stated Percentage																7.56%
Restricted Investments										900			1,000
Long-Term Debt, Gross										65,008			81,078
Debt Instrument, Face Amount										65,008			81,078			$ 157,800
The 2026 Notes [Member]
Debt Instrument, Interest Rate, Stated Percentage																		4.875%
Long-Term Debt, Gross										57,500			57,500
Debt Instrument, Face Amount										57,500			57,500					$ 57,500
The 2026 Notes Underwriter Option [Member]
Debt Instrument, Face Amount																		$ 7,500
Debt Instrument, Convertible, Conversion Price (in dollars per share)																		$ 25
The 2027 Notes [Member]
Debt Instrument, Interest Rate, Stated Percentage																	6.25%
Long-Term Debt, Gross										57,500			57,500
Debt Instrument, Face Amount										57,500			57,500				$ 50,000
The 2027 Notes Underwriter Option [Member]
Debt Instrument, Face Amount																	$ 7,500
Debt Instrument, Convertible, Conversion Price (in dollars per share)																	$ 25
The 2031 Convertible Notes [Member]
Debt Instrument, Interest Rate, Stated Percentage			7.125%
Long-Term Debt, Gross										20,000			20,000
Debt Instrument, Face Amount			$ 20,000							$ 20,000			20,000
Debt Instrument, Convertible, Conversion Price (in dollars per share)										$ 8.94		$ 9.28
Proceeds from Convertible Debt			$ 18,600
Debt Instrument, Interest Rate, Increase From Failure to Maintain Investment Rating			1.00%
Debt Instrument, Interest Rate, Increase From Default			2.00%
Debt Instrument, Redemption Price, Percentage			100.00%
Debt Instrument, Convertible, Threshold Consecutive Trading Days										5
Debt Instrument, Convertible, Number of Equity Instruments										2,154,569
Convertible Debt										$ 20,000	$ 0		$ 20,000
Debt Instrument, Maturity Date			Oct. 17, 2031
The 2031 Convertible Notes [Member] \| Subsequent Event [Member]
Debt Instrument, Redemption Price, Percentage		100.00%
Minimum [Member]
Asset Coverage to Borrowings, Ratio, Percent										150.00%
Minimum [Member] \| Key Facility [Member] \| Prime Rate [Member]
Debt Instrument, Basis Spread on Variable Rate					4.10%	4.25%
Minimum [Member] \| NYL Facility [Member] \| Subsequent Event [Member]
Debt Instrument, Interest Rate, Stated Percentage	4.60%
Minimum [Member] \| NYL Facility [Member] \| USD Mid-market Swap Rate [Member]
Debt Instrument, Basis Spread on Variable Rate									3.55%
Minimum [Member] \| Nuveen Facility [Member]
Debt Instrument, Interest Rate, Stated Percentage				5.00%
Minimum [Member] \| Nuveen Facility [Member] \| Selected Interest Rates (Daily) [Member]
Debt Instrument, Basis Spread on Variable Rate, Treasury Yield Maturity (Year)				3 years
Maximum [Member] \| NYL Facility [Member] \| USD Mid-market Swap Rate [Member]
Debt Instrument, Basis Spread on Variable Rate									5.15%
Maximum [Member] \| Nuveen Facility [Member] \| Selected Interest Rates (Daily) [Member]
Debt Instrument, Basis Spread on Variable Rate, Treasury Yield Maturity (Year)				5 years
Weighted Average [Member] \| Nuveen Facility [Member] \| Selected Interest Rates (Daily) [Member]
Debt Instrument, Basis Spread on Variable Rate, Treasury Yield Maturity (Year)				4 years 10 months 17 days