Note 11 - Fair Value Measurements - Schedule of Financial Assets and Liabilities on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Securities available-for-sale	$ 251,917	$ 229,252
Loans receivable, at fair value	18,636	20,093
US Government Agencies Debt Securities [Member]
Securities available-for-sale	17,096	17,288
Corporate Debt Securities [Member]
Securities available-for-sale	6,354	8,545
Collateralized Mortgage-Backed Securities [Member]
Securities available-for-sale	89,607	69,966
U.S. Small Business Administration Securities [Member]
Securities available-for-sale	30,239	12,851
Fair Value, Recurring [Member]
Mortgage loans held for sale, at fair value	18,636	20,093
Loans receivable, at fair value	15,176	14,035
Assets, Fair Value Disclosure	300,765	273,521
Financial liabilities	(90)	(38)
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Mortgage loans held for sale, at fair value	0	0
Loans receivable, at fair value	0	0
Assets, Fair Value Disclosure	0	0
Financial liabilities	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Mortgage loans held for sale, at fair value	18,636	20,093
Loans receivable, at fair value	15,176	14,035
Assets, Fair Value Disclosure	300,569	273,414
Financial liabilities	(90)	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Mortgage loans held for sale, at fair value	0	0
Loans receivable, at fair value	0	0
Assets, Fair Value Disclosure	196	107
Financial liabilities	0	(38)
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member]
Securities available-for-sale	17,096	17,288
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale	0	0
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale	17,096	17,288
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale	0	0
Fair Value, Recurring [Member] | Corporate Debt Securities [Member]
Securities available-for-sale	6,354	8,545
Fair Value, Recurring [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale	0	0
Fair Value, Recurring [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale	6,354	8,545
Fair Value, Recurring [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale	0	0
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member]
Securities available-for-sale	108,621	120,602
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale	0	0
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale	108,621	120,602
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale	0	0
Fair Value, Recurring [Member] | Collateralized Mortgage-Backed Securities [Member]
Securities available-for-sale	89,607	69,966
Fair Value, Recurring [Member] | Collateralized Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale	0	0
Fair Value, Recurring [Member] | Collateralized Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale	89,607	69,966
Fair Value, Recurring [Member] | Collateralized Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale	0	0
Fair Value, Recurring [Member] | U.S. Small Business Administration Securities [Member]
Securities available-for-sale	30,239	12,851
Fair Value, Recurring [Member] | U.S. Small Business Administration Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale	0	0
Fair Value, Recurring [Member] | U.S. Small Business Administration Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale	30,239	12,851
Fair Value, Recurring [Member] | U.S. Small Business Administration Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale	0	0
Fair Value, Recurring [Member] | Forward TBA Mortgage-Backed Securities [Member]
Derivative asset	355	164
Fair Value, Recurring [Member] | Forward TBA Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Derivative asset	0	0
Fair Value, Recurring [Member] | Forward TBA Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Derivative asset	355	164
Fair Value, Recurring [Member] | Forward TBA Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Derivative asset	0	0
Fair Value, Recurring [Member] | Interest Rate Swap [Member]
Derivative asset	14,485	9,870
Financial liabilities	(90)
Fair Value, Recurring [Member] | Interest Rate Swap [Member] | Fair Value, Inputs, Level 1 [Member]
Derivative asset	0	0
Financial liabilities	0
Fair Value, Recurring [Member] | Interest Rate Swap [Member] | Fair Value, Inputs, Level 2 [Member]
Derivative asset	14,485	9,870
Financial liabilities	(90)
Fair Value, Recurring [Member] | Interest Rate Swap [Member] | Fair Value, Inputs, Level 3 [Member]
Derivative asset	0	0
Financial liabilities	0
Fair Value, Recurring [Member] | Interest Rate Lock Commitments [Member]
Derivative asset	175	107
Fair Value, Recurring [Member] | Interest Rate Lock Commitments [Member] | Fair Value, Inputs, Level 1 [Member]
Derivative asset	0	0
Fair Value, Recurring [Member] | Interest Rate Lock Commitments [Member] | Fair Value, Inputs, Level 2 [Member]
Derivative asset	0	0
Fair Value, Recurring [Member] | Interest Rate Lock Commitments [Member] | Fair Value, Inputs, Level 3 [Member]
Derivative asset	175	107
Fair Value, Recurring [Member] | Mandatory and Best Effort Forward Commitments [Member]
Derivative asset	21	(38)
Fair Value, Recurring [Member] | Mandatory and Best Effort Forward Commitments [Member] | Fair Value, Inputs, Level 1 [Member]
Derivative asset	0	0
Fair Value, Recurring [Member] | Mandatory and Best Effort Forward Commitments [Member] | Fair Value, Inputs, Level 2 [Member]
Derivative asset	0	0
Fair Value, Recurring [Member] | Mandatory and Best Effort Forward Commitments [Member] | Fair Value, Inputs, Level 3 [Member]
Derivative asset	$ 21	$ (38)