Note 3 - Investment Securities - Contractual Maturities (Details) - USD ($) $ in Thousands		Sep. 30, 2025		Dec. 31, 2024
Available for Sale Amortized cost, Within one year	[1]	$ 250
Available for Sale Fair value, Within one year		250
Held to Maturity Amortized cost, Within one year		181
Held to Maturity Fair value, Within one year		181
Available for Sale Amortized cost, Over one to five years	[1]	752
Available for Sale Fair value, Over one to five years		707
Held to Maturity Amortized cost, Over one to five years		1,577
Held to Maturity Fair value, Over one to five years		1,595
Available for Sale Amortized cost, Fair value, Over one to five years	[1]	6,500
Available for Sale Fair value, Over five to ten years		5,822
Held to Maturity Amortized cost, Over five to ten years		8,104
Held to Maturity Fair value, Over five to ten years		7,883
Available for Sale Amortized cost, Over ten years	[1]	0
Available for Sale Fair value, Over ten years		0
Held to Maturity Amortized cost, Over ten years		11,345
Held to Maturity Fair value, Over ten years		10,592
Available for Sale Amortized cost, Fair value, total	[1]	7,502
Available for Sale Fair value, total		6,779
Held to Maturity Amortized cost, total		21,207
Held to Maturity Fair value, total		20,251
Mortgage-backed securities and SBA pools, amortized cost, available for sale	[1]	131,610
Mortgage-backed securities and SBA pools, fair value, available for sale		114,359
Mortgage-backed securities and SBA pools, held to maturity, amortized cost		0
Mortgage-backed securities and SBA pools, held to maturity, fair value		0
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss	[2]	139,112	[1]	$ 149,041
Available for Sale Fair value Total		121,138		$ 125,713	[3]
Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss		21,207
Held to Maturity Fair value total		$ 20,251

[1] Exluded from the amortized cost of securities available for sale are basis adjustments for securities designated in active fair value hedges. Basis adjustments totaled $222 thousand as of September 30, 2025.

[2] Exluded from the amortized cost of securities available for sale are basis adjustments for securities designated in active fair value hedges. Basis adjustments totaled $222 thousand and ($556) thousand as of September 30, 2025 and December 31, 2024, respectively.

[3] Derived from audited consolidated financial statements