v3.26.1
Note 6 - Fair Value Measurements - Schedule of Assets and Liabilities on Recurring Basis (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Available-for-sale securities $ 37,066 $ 34,317
Investments in available-for-sale securities, at fair value 37,066 34,317
Collateralized Mortgage-Backed Securities [Member]    
Available-for-sale securities 6,337 6,459
Investments in available-for-sale securities, at fair value 6,337 6,459
Collateralized Mortgage Obligations [Member]    
Available-for-sale securities 12,235 10,948
Investments in available-for-sale securities, at fair value 12,235 10,948
Fair Value, Recurring [Member]    
Derivative instruments 266 2
Total assets measured at fair value on a recurring basis 37,332 34,319
Derivative instruments, liabilities 831 1,603
Total liabilities measured at fair value on a recurring basis 831 1,603
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]    
Derivative instruments 0 0
Total assets measured at fair value on a recurring basis 0 0
Derivative instruments, liabilities 0 0
Total liabilities measured at fair value on a recurring basis 0 0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]    
Derivative instruments 266 2
Total assets measured at fair value on a recurring basis 37,332 34,319
Derivative instruments, liabilities 831 1,603
Total liabilities measured at fair value on a recurring basis 831 1,603
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]    
Derivative instruments 0 0
Total assets measured at fair value on a recurring basis 0 0
Derivative instruments, liabilities 0 0
Total liabilities measured at fair value on a recurring basis 0 0
Fair Value, Recurring [Member] | Collateralized Mortgage-Backed Securities [Member]    
Available-for-sale securities 6,337 6,459
Investments in available-for-sale securities, at fair value 6,337 6,459
Fair Value, Recurring [Member] | Collateralized Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 1 [Member]    
Available-for-sale securities 0 0
Investments in available-for-sale securities, at fair value 0 0
Fair Value, Recurring [Member] | Collateralized Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]    
Available-for-sale securities 6,337 6,459
Investments in available-for-sale securities, at fair value 6,337 6,459
Fair Value, Recurring [Member] | Collateralized Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member]    
Available-for-sale securities 0 0
Investments in available-for-sale securities, at fair value 0 0
Fair Value, Recurring [Member] | Collateralized Mortgage Obligations [Member]    
Available-for-sale securities 12,235 10,948
Investments in available-for-sale securities, at fair value 12,235 10,948
Fair Value, Recurring [Member] | Collateralized Mortgage Obligations [Member] | Fair Value, Inputs, Level 1 [Member]    
Available-for-sale securities 0 0
Investments in available-for-sale securities, at fair value 0 0
Fair Value, Recurring [Member] | Collateralized Mortgage Obligations [Member] | Fair Value, Inputs, Level 2 [Member]    
Available-for-sale securities 12,235 10,948
Investments in available-for-sale securities, at fair value 12,235 10,948
Fair Value, Recurring [Member] | Collateralized Mortgage Obligations [Member] | Fair Value, Inputs, Level 3 [Member]    
Available-for-sale securities 0 0
Investments in available-for-sale securities, at fair value 0 0
Fair Value, Recurring [Member] | Corporate Bond Securities [Member]    
Available-for-sale securities 18,494 16,910
Investments in available-for-sale securities, at fair value 18,494 16,910
Fair Value, Recurring [Member] | Corporate Bond Securities [Member] | Fair Value, Inputs, Level 1 [Member]    
Available-for-sale securities 0 0
Investments in available-for-sale securities, at fair value 0 0
Fair Value, Recurring [Member] | Corporate Bond Securities [Member] | Fair Value, Inputs, Level 2 [Member]    
Available-for-sale securities 18,494 16,910
Investments in available-for-sale securities, at fair value 18,494 16,910
Fair Value, Recurring [Member] | Corporate Bond Securities [Member] | Fair Value, Inputs, Level 3 [Member]    
Available-for-sale securities 0 0
Investments in available-for-sale securities, at fair value $ 0 $ 0