v3.26.1
Note 6 - Fair Values of Assets and Liabilities - Summary of Fair Value Hierarchy for Assets (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Loans, interest and fees receivable, at fair value $ 6,658,748 $ 6,647,882
Fair Value, Recurring [Member]    
Loans at amortized cost, net for which it is practicable to estimate fair value and which are carried at net amortized cost [1] 77,731 82,884
Loans, interest and fees receivable, at fair value [1] 6,658,748 6,647,882
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]    
Loans at amortized cost, net for which it is practicable to estimate fair value and which are carried at net amortized cost [1] 0 0
Loans, interest and fees receivable, at fair value [1] 0 0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]    
Loans at amortized cost, net for which it is practicable to estimate fair value and which are carried at net amortized cost [1] 0 0
Loans, interest and fees receivable, at fair value [1] 0 0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]    
Loans at amortized cost, net for which it is practicable to estimate fair value and which are carried at net amortized cost [1] 91,190 97,539
Loans, interest and fees receivable, at fair value [1] $ 6,658,748 $ 6,647,882
[1] For cash, deposits and investments in equity securities, the carrying amount is a reasonable estimate of fair value.