Note 5 - Loans and Allowance for Credit Losses - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024
Allowance for loan losses	$ 4,260	$ 4,284
Provision for loan losses	725	114
Charge-offs	(647)	(162)
Recoveries	23	24
Allowance for loan losses	4,361	4,260
Allowance for loan losses ending balance evaluated for impairment individually	0	360
Allowance for loan losses ending balance evaluated for impairment collectively	4,361	3,899
Outstanding loan balances evaluated for impairment individually	0	2,710
Outstanding loan balances evaluated for impairment collectively	638,340	585,253
Commercial Real Estate Portfolio Segment [Member]
Allowance for loan losses	2,481	2,448
Provision for loan losses	550	33
Charge-offs	(647)	0
Recoveries	0	0
Allowance for loan losses	2,384	2,481
Allowance for loan losses ending balance evaluated for impairment individually	0	360
Allowance for loan losses ending balance evaluated for impairment collectively	2,384	2,122
Outstanding loan balances evaluated for impairment individually	0	2,440
Outstanding loan balances evaluated for impairment collectively	432,726	395,686
Construction and Land Development [Member]
Allowance for loan losses	478	253
Provision for loan losses	42	225
Charge-offs	0	0
Recoveries	0	0
Allowance for loan losses	520	478
Allowance for loan losses ending balance evaluated for impairment individually	0	0
Allowance for loan losses ending balance evaluated for impairment collectively	520	478
Outstanding loan balances evaluated for impairment individually	0	0
Outstanding loan balances evaluated for impairment collectively	36,352	27,357
Residential Portfolio Segment [Member]
Allowance for loan losses	751	1,013
Provision for loan losses	(130)	(281)
Charge-offs	0	(5)
Recoveries	23	24
Allowance for loan losses	644	751
Allowance for loan losses ending balance evaluated for impairment individually	0	0
Allowance for loan losses ending balance evaluated for impairment collectively	644	751
Outstanding loan balances evaluated for impairment individually	0	270
Outstanding loan balances evaluated for impairment collectively	118,924	111,629
Commercial Portfolio Segment [Member]
Allowance for loan losses	513	494
Provision for loan losses	249	171
Charge-offs	0	(152)
Recoveries	0	0
Allowance for loan losses	762	513
Allowance for loan losses ending balance evaluated for impairment individually	0	0
Allowance for loan losses ending balance evaluated for impairment collectively	762	512
Outstanding loan balances evaluated for impairment individually	0	0
Outstanding loan balances evaluated for impairment collectively	49,869	50,405
Consumer Portfolio Segment [Member]
Allowance for loan losses	4	2
Provision for loan losses	(3)	7
Charge-offs	0	(5)
Recoveries	0	0
Allowance for loan losses	1	4
Allowance for loan losses ending balance evaluated for impairment individually	0	0
Allowance for loan losses ending balance evaluated for impairment collectively	1	4
Outstanding loan balances evaluated for impairment individually	0	0
Outstanding loan balances evaluated for impairment collectively	469	176
Unallocated Financing Receivables [Member]
Allowance for loan losses	33	74
Provision for loan losses	17	(41)
Charge-offs	0	0
Recoveries	0	0
Allowance for loan losses	50	33
Allowance for loan losses ending balance evaluated for impairment individually	0	0
Allowance for loan losses ending balance evaluated for impairment collectively	50	33
Outstanding loan balances evaluated for impairment individually	0	0
Outstanding loan balances evaluated for impairment collectively	$ 0	$ 0

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
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