Note 10 - Subordinated Debt Securities	12 Months Ended
Dec. 31, 2023
Notes to Financial Statements
Subordinated Borrowings Disclosure [Text Block]	*NOTE 10.* SUBORDINATED DEBT SECURITIES** On April 6, 2022, the Company entered into a Subordinated Note Purchase Agreement with certain institutional accredited investors and qualified institutional buyers (the “Purchasers”) under which the Company issued $20.0 million in aggregate principal amount of its 5.125% Fixed-to-Floating Rate Subordinated Notes due 2032 (the “2032 Notes”) to the Purchasers at a price equal to 100% of the aggregate principal amount of the 2032 Notes. The 2032 Notes were issued under an indenture, dated April 6, 2022 (the “Indenture”), by and among the Company and UMB Bank, National Association, as trustee. The 2032 Notes have a stated maturity date of April 15, 2032 and will bear interest at a fixed rate of 5.125% per year from and including April 6, 2022 to but excluding April 15, 2027 or earlier redemption date. From April 15, 2027 to but excluding the stated maturity date or earlier redemption date, the 2032 Notes will bear interest a floating rate equal to the then current three-month term secured overnight financing rate (“SOFR”), plus 277 basis points. As provided in the 2032 Notes, the interest rate on the 2032 Notes during the applicable floating rate period may be determined based on a rate other than three-month term SOFR. The 2032 Notes may be redeemed, in whole or in part, on or after April 15, 2027 or, in whole but not in part, under certain other limited circumstances set forth in the Indenture. Any redemption we made would be at a redemption price equal to 100% of the principal balance being redeemed, together with any accrued and unpaid interest to the date of redemption. Principal and interest on the 2032 Notes are subject to acceleration only in limited circumstances in the case of certain bankruptcy and insolvency-related events. The 2032 Notes are the unsecured, subordinated obligations of the Company and rank junior in right of payment to our current and future senior indebtedness and to our obligations to our general creditors. The 2032 Notes are intended to qualify as Tier 2 capital for regulatory purposes. The Company used the majority of the net proceeds to redeem its 6.00% Fixed-to-Floating Rate Subordinated Notes due 2027 (the “2027 Notes”) in June 2022 and utilized the remaining proceeds for share repurchases and for general corporate purposes. On November 12, 2019, the Company issued and sold $25.0 million in aggregate principal amount of its 5.125% Fixed-to-Floating Rate Subordinated Notes (the “2029 Notes”) due December 30, 2029. Beginning on December 30, 2024, the Company may redeem the 2029 Notes, in whole or in part, at their principal amount plus any accrued and unpaid interest. The 2029 Notes bear an interest rate of 5.125% per annum until December 30, 2024, on which date the interest rate will reset quarterly to an annual interest rate equal to the then-current three-month LIBOR as calculated on each applicable date of determination, or an alternative rate determined in accordance with the terms of the 2029 Notes if the three-month LIBOR cannot be determined, plus 349.0 basis points. On March 24, 2017, the Company issued and sold $18.6 million in aggregate principal amount of its 2027 Notes due March 30, 2027. Beginning on March 30, 2022, the Company could redeem the 2027 Notes, in whole or in part, at their principal amount plus any accrued and unpaid interest. The 2027 Notes had an interest rate of 6.00% per annum until March 30, 2022, on which date the interest rate reset quarterly to an annual interest rate equal to the then-current LIBOR plus 394.5 basis points. In June 2022, the Company redeemed the 2027 Notes in full in accordance with their terms at a redemption price equal to 100% of the outstanding principal balance plus accrued and unpaid interest up to but excluding the June 30, 2022 redemption date (“Redemption Date”). The aggregate redemption price, excluding accrued interest, totaled $18.6 million. Interest on the 2027 Notes no longer accrued on or after the Redemption Date. The carrying value of subordinated debt was $44.3 million and $44.2 million at December 31, 2023 and 2022, respectively. The subordinated debt securities were recorded net of issuance costs of $0.7 million and $0.8 million at December 31, 2023 and 2022, respectively, which are being amortized using the straight-line method over the lives of the respective securities.

Note 10 - Subordinated Debt Securities

12 Months Ended

Dec. 31, 2023

Subordinated Borrowings Disclosure [Text Block]

NOTE 10. SUBORDINATED DEBT SECURITIES

On April 6, 2022, the Company entered into a Subordinated Note Purchase Agreement with certain institutional accredited investors and qualified institutional buyers (the “Purchasers”) under which the Company issued $20.0 million in aggregate principal amount of its 5.125% Fixed-to-Floating Rate Subordinated Notes due 2032 (the “2032 Notes”) to the Purchasers at a price equal to 100% of the aggregate principal amount of the 2032 Notes. The 2032 Notes were issued under an indenture, dated April 6, 2022 (the “Indenture”), by and among the Company and UMB Bank, National Association, as trustee.

The 2032 Notes have a stated maturity date of April 15, 2032 and will bear interest at a fixed rate of 5.125% per year from and including April 6, 2022 to but excluding April 15, 2027 or earlier redemption date. From April 15, 2027 to but excluding the stated maturity date or earlier redemption date, the 2032 Notes will bear interest a floating rate equal to the then current three-month term secured overnight financing rate (“SOFR”), plus 277 basis points. As provided in the 2032 Notes, the interest rate on the 2032 Notes during the applicable floating rate period may be determined based on a rate other than three-month term SOFR. The 2032 Notes may be redeemed, in whole or in part, on or after April 15, 2027 or, in whole but not in part, under certain other limited circumstances set forth in the Indenture. Any redemption we made would be at a redemption price equal to 100% of the principal balance being redeemed, together with any accrued and unpaid interest to the date of redemption.

Principal and interest on the 2032 Notes are subject to acceleration only in limited circumstances in the case of certain bankruptcy and insolvency-related events. The 2032 Notes are the unsecured, subordinated obligations of the Company and rank junior in right of payment to our current and future senior indebtedness and to our obligations to our general creditors. The 2032 Notes are intended to qualify as Tier 2 capital for regulatory purposes.

The Company used the majority of the net proceeds to redeem its 6.00% Fixed-to-Floating Rate Subordinated Notes due 2027 (the “2027 Notes”) in June 2022 and utilized the remaining proceeds for share repurchases and for general corporate purposes.

On November 12, 2019, the Company issued and sold $25.0 million in aggregate principal amount of its 5.125% Fixed-to-Floating Rate Subordinated Notes (the “2029 Notes”) due December 30, 2029. Beginning on December 30, 2024, the Company may redeem the 2029 Notes, in whole or in part, at their principal amount plus any accrued and unpaid interest. The 2029 Notes bear an interest rate of 5.125% per annum until December 30, 2024, on which date the interest rate will reset quarterly to an annual interest rate equal to the then-current three-month LIBOR as calculated on each applicable date of determination, or an alternative rate determined in accordance with the terms of the 2029 Notes if the three-month LIBOR cannot be determined, plus 349.0 basis points.

On March 24, 2017, the Company issued and sold $18.6 million in aggregate principal amount of its 2027 Notes due March 30, 2027. Beginning on March 30, 2022, the Company could redeem the 2027 Notes, in whole or in part, at their principal amount plus any accrued and unpaid interest. The 2027 Notes had an interest rate of 6.00% per annum until March 30, 2022, on which date the interest rate reset quarterly to an annual interest rate equal to the then-current LIBOR plus 394.5 basis points. In June 2022, the Company redeemed the 2027 Notes in full in accordance with their terms at a redemption price equal to 100% of the outstanding principal balance plus accrued and unpaid interest up to but excluding the June 30, 2022 redemption date (“Redemption Date”). The aggregate redemption price, excluding accrued interest, totaled $18.6 million. Interest on the 2027 Notes no longer accrued on or after the Redemption Date.

The carrying value of subordinated debt was $44.3 million and $44.2 million at December 31, 2023 and 2022, respectively. The subordinated debt securities were recorded net of issuance costs of $0.7 million and $0.8 million at December 31, 2023 and 2022, respectively, which are being amortized using the straight-line method over the lives of the respective securities.