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Note 2 - Significant Accounting Policies and Consolidated Financial Statement Components - Summary of Aging of Delinquent Loans and Fees Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Total loans, interest and fees receivable, gross	$ 105,267	$ 470,293	$ 667,600
Balance of loans greater than 90-days delinquent still accruing interest and fees	1,700	1,500	1,500
Credit Card Receivable [Member]
Total loans, interest and fees receivable, gross	0	259,500	364,200
Balance of loans greater than 90-days delinquent still accruing interest and fees	0	0	0
Automobile Loan [Member]
Total loans, interest and fees receivable, gross	105,300	94,600	93,200
Balance of loans greater than 90-days delinquent still accruing interest and fees	1,700	1,500	1,500
Other Unsecured Lending Products [Member]
Total loans, interest and fees receivable, gross	0	116,200	210,200
Balance of loans greater than 90-days delinquent still accruing interest and fees	0	0	0
Financial Asset, 30 to 59 Days Past Due [Member]
Total loans, interest and fees receivable, gross	8,500	17,600	25,100
Financial Asset, 30 to 59 Days Past Due [Member] | Credit Card Receivable [Member]
Total loans, interest and fees receivable, gross	0	7,300	12,400
Financial Asset, 30 to 59 Days Past Due [Member] | Automobile Loan [Member]
Total loans, interest and fees receivable, gross	8,500	7,000	7,600
Financial Asset, 30 to 59 Days Past Due [Member] | Other Unsecured Lending Products [Member]
Total loans, interest and fees receivable, gross	0	3,300	5,100
Financial Asset, 60 to 89 Days Past Due [Member]
Total loans, interest and fees receivable, gross	3,000	12,000	14,600
Financial Asset, 60 to 89 Days Past Due [Member] | Credit Card Receivable [Member]
Total loans, interest and fees receivable, gross	0	6,900	8,000
Financial Asset, 60 to 89 Days Past Due [Member] | Automobile Loan [Member]
Total loans, interest and fees receivable, gross	3,000	2,500	2,800
Financial Asset, 60 to 89 Days Past Due [Member] | Other Unsecured Lending Products [Member]
Total loans, interest and fees receivable, gross	0	2,600	3,800
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Total loans, interest and fees receivable, gross	2,100	26,500	31,500
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Credit Card Receivable [Member]
Total loans, interest and fees receivable, gross	0	17,900	19,900
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Automobile Loan [Member]
Total loans, interest and fees receivable, gross	2,100	1,800	2,100
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Other Unsecured Lending Products [Member]
Total loans, interest and fees receivable, gross	0	6,800	9,500
Financial Asset, Past Due [Member]
Total loans, interest and fees receivable, gross	13,600	56,100	71,200
Financial Asset, Past Due [Member] | Credit Card Receivable [Member]
Total loans, interest and fees receivable, gross	0	32,100	40,300
Financial Asset, Past Due [Member] | Automobile Loan [Member]
Total loans, interest and fees receivable, gross	13,600	11,300	12,500
Financial Asset, Past Due [Member] | Other Unsecured Lending Products [Member]
Total loans, interest and fees receivable, gross	0	12,700	18,400
Financial Asset, Not Past Due [Member]
Total loans, interest and fees receivable, gross	91,700	414,200	596,400
Financial Asset, Not Past Due [Member] | Credit Card Receivable [Member]
Total loans, interest and fees receivable, gross	0	227,400	323,900
Financial Asset, Not Past Due [Member] | Automobile Loan [Member]
Total loans, interest and fees receivable, gross	91,700	83,300	80,700
Financial Asset, Not Past Due [Member] | Other Unsecured Lending Products [Member]
Total loans, interest and fees receivable, gross	$ 0	$ 103,500	$ 191,800

X

- Definition

Amortized cost of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 80
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479294/326-20-55-80

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-16

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Subparagraph (b)
-SubTopic 10
-Topic 310
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-7

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- Definition

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481990/310-10-45-2

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