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Note 6 - Fair Values of Assets and Liabilities - Quantitative Information about Level 3 Assets and Liabilities Fair Value Measurements (Details) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
--- | --- | --- | ---
Loans, interest and fees receivable, at fair value | $ 1,817,976,000 | $ 1,026,424,000 |
Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Gross Yield [Member] |  |  |
Loans, interest and fees receivable, at fair value | $ 1,817,976,000 | $ 1,026,424 | $ 417,098
Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Gross Yield [Member] | Minimum [Member] |  |  |
Loans and fees receivable, measurement input | 0.247 | 0.278 | 0.227
Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Gross Yield [Member] | Maximum [Member] |  |  |
Loans and fees receivable, measurement input | 0.361 | 0.469 | 0.565
Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Gross Yield [Member] | Weighted Average [Member] |  |  |
Loans and fees receivable, measurement input | 0.316 | 0.409 | 0.433
Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Constant Prepayment Rate [Member] | Minimum [Member] |  |  |
Loans and fees receivable, measurement input | 0.053 | 0.054 | 0.039
Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Constant Prepayment Rate [Member] | Maximum [Member] |  |  |
Loans and fees receivable, measurement input | 0.114 | 0.129 | 0.114
Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Constant Prepayment Rate [Member] | Weighted Average [Member] |  |  |
Loans and fees receivable, measurement input | 0.103 | 0.106 | 0.085
Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Default Rate [Member] | Minimum [Member] |  |  |
Loans and fees receivable, measurement input | 0.092 | 0.078 | 0.069
Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Default Rate [Member] | Maximum [Member] |  |  |
Loans and fees receivable, measurement input | 0.303 | 0.264 | 0.314
Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Default Rate [Member] | Weighted Average [Member] |  |  |
Loans and fees receivable, measurement input | 0.302 | 0.235 | 0.248
Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Servicing Rate [Member] | Minimum [Member] |  |  |
Loans and fees receivable, measurement input | 0.035 | 0.034 | 0.029
Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Servicing Rate [Member] | Maximum [Member] |  |  |
Loans and fees receivable, measurement input | 0.064 | 0.057 | 0.142
Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Servicing Rate [Member] | Weighted Average [Member] |  |  |
Loans and fees receivable, measurement input | 0.036 | 0.046 | 0.043
Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member] |  |  |
Loans and fees receivable, measurement input | 0.098 | 0.123 | 0.128
Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member] |  |  |
Loans and fees receivable, measurement input | 0.105 | 0.135 | 0.135
Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Weighted Average [Member] |  |  |
Loans and fees receivable, measurement input | 0.101 | 0.129 | 0.133

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- Definition Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Publisher FASB -URI https://asc.fasb.org//310-10/tableOfContent + Details
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