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Note 2 - Significant Accounting Policies and Consolidated Financial Statement Components - Summary of Allowance for Uncollectible Loans and Fees Receivable (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Balance at beginning of period | $ (1,643) | $ (57,200)
Provision for credit losses | (2,152) | (1,252)
Charge-offs |  | 2,600
Recoveries |  | (1,300)
Balance at end of period | (1,759) | (1,643)
Provision for credit losses | (2,152) | (1,252)
Cumulative Effect, Period of Adoption, Adjustment [Member] | Adoption of Fair Value Under the CECL Standard [Member] |  |
Balance at beginning of period |  | 55,800
Cumulative Effect, Period of Adoption, Adjustment [Member] | Adoption of the CECL Standard [Member] |  |
Balance at beginning of period |  | (200)
Credit Card Receivable [Member] |  |
Balance at beginning of period | (1,600) | (43,400)
Provision for credit losses | (2,200) | 0
Charge-offs | 3,900 | 0
Recoveries | (1,900) | 0
Balance at end of period | (1,800) | (1,600)
Provision for credit losses | (2,200) | 0
Credit Card Receivable [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Adoption of Fair Value Under the CECL Standard [Member] |  |
Balance at beginning of period |  | 43,400
Credit Card Receivable [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Adoption of the CECL Standard [Member] |  |
Balance at beginning of period |  | 0
Automobile Loan [Member] |  |
Balance at beginning of period | $ (1,600) | (1,400)
Provision for credit losses |  | (1,300)
Charge-offs |  | 2,600
Recoveries |  | (1,300)
Balance at end of period |  | (1,600)
Provision for credit losses |  | (1,300)
Automobile Loan [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Adoption of Fair Value Under the CECL Standard [Member] |  |
Balance at beginning of period |  | 0
Automobile Loan [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Adoption of the CECL Standard [Member] |  |
Balance at beginning of period |  | (200)
Other Unsecured Lending Products [Member] |  |
Balance at beginning of period |  | (12,400)
Provision for credit losses |  | 0
Charge-offs |  | 0
Recoveries |  | 0
Provision for credit losses |  | 0
Other Unsecured Lending Products [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Adoption of Fair Value Under the CECL Standard [Member] |  |
Balance at beginning of period |  | 12,400
Other Unsecured Lending Products [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Adoption of the CECL Standard [Member] |  |
Balance at beginning of period |  |

X
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