Note 7 - Variable Interest Entities - Summary of Variable Interest Entities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021
Unrestricted cash and cash equivalents	$ 316,331	$ 409,660
Restricted cash and cash equivalents	49,989	96,968
Loans, interest and fees receivable, at fair value	1,616,875	1,026,424
Total loans, interest and fees receivable, gross	104,563	470,293
Allowances for uncollectible loans, interest and fees receivable	(1,643)	(57,201)
Deferred revenue	(16,738)	(29,281)
Total Assets held by VIEs	2,116,454	1,943,863	$ 1,419,851
Notes Payable, net held by VIEs	1,429,340	1,278,864
Maximum exposure to loss due to involvement with VIEs	1,459,300	1,289,100
Variable Interest Entity, Primary Beneficiary [Member]
Unrestricted cash and cash equivalents	184,500	209,500
Restricted cash and cash equivalents	25,000	75,900
Loans, interest and fees receivable, at fair value	1,461,300	925,500
Total loans, interest and fees receivable, gross	0	369,600
Allowances for uncollectible loans, interest and fees receivable	0	(55,100)
Deferred revenue	0	(8,200)
Total Assets held by VIEs	1,670,800	1,517,200
Notes Payable, net held by VIEs	$ 1,359,700	$ 1,223,400