Note 2 - Significant Accounting Policies and Consolidated Financial Statement Components - Summary of Aging of Delinquent Loans and Fees Receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Total loans, interest and fees receivable, gross	$ 104,563	$ 470,293
Balance of loans greater than 90-days delinquent still accruing interest and fees	900	1,500
Financial Asset, 30 to 59 Days Past Due [Member]
Total loans, interest and fees receivable, gross	7,200	17,800
Financial Asset, 60 to 89 Days Past Due [Member]
Total loans, interest and fees receivable, gross	2,500	12,100
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Total loans, interest and fees receivable, gross	1,200	26,700
Financial Asset, Past Due [Member]
Total loans, interest and fees receivable, gross	10,900	56,600
Financial Asset, Not Past Due [Member]
Total loans, interest and fees receivable, gross	93,700	413,700
Credit Card Receivable [Member]
Total loans, interest and fees receivable, gross	0	259,500
Balance of loans greater than 90-days delinquent still accruing interest and fees	0	0
Credit Card Receivable [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Total loans, interest and fees receivable, gross	0	7,300
Credit Card Receivable [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Total loans, interest and fees receivable, gross	0	6,900
Credit Card Receivable [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Total loans, interest and fees receivable, gross	0	17,900
Credit Card Receivable [Member] | Financial Asset, Past Due [Member]
Total loans, interest and fees receivable, gross	0	32,100
Credit Card Receivable [Member] | Financial Asset, Not Past Due [Member]
Total loans, interest and fees receivable, gross	0	227,400
Automobile Loan [Member]
Total loans, interest and fees receivable, gross	104,600	94,600
Balance of loans greater than 90-days delinquent still accruing interest and fees	900	1,500
Automobile Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Total loans, interest and fees receivable, gross	7,200	7,200
Automobile Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Total loans, interest and fees receivable, gross	2,500	2,600
Automobile Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Total loans, interest and fees receivable, gross	1,200	2,000
Automobile Loan [Member] | Financial Asset, Past Due [Member]
Total loans, interest and fees receivable, gross	10,900	11,800
Automobile Loan [Member] | Financial Asset, Not Past Due [Member]
Total loans, interest and fees receivable, gross	93,700	82,800
Other Unsecured Lending Products [Member]
Total loans, interest and fees receivable, gross	0	116,200
Balance of loans greater than 90-days delinquent still accruing interest and fees	0	0
Other Unsecured Lending Products [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Total loans, interest and fees receivable, gross	0	3,300
Other Unsecured Lending Products [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Total loans, interest and fees receivable, gross	0	2,600
Other Unsecured Lending Products [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Total loans, interest and fees receivable, gross	0	6,800
Other Unsecured Lending Products [Member] | Financial Asset, Past Due [Member]
Total loans, interest and fees receivable, gross	0	12,700
Other Unsecured Lending Products [Member] | Financial Asset, Not Past Due [Member]
Total loans, interest and fees receivable, gross	$ 0	$ 103,500