Note 4 - Loans Receivables and Allowance for Loan and Lease Losses - Non-accrual Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Loans receivable, gross	$ 739,488	$ 730,180
Business Activities Loans [Member]
Loans receivable, gross	739,488	730,180
Non-accruing loans	23,095	20,005
Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	716,393	710,175
Commercial Real Estate Portfolio Segment [Member]
Loans receivable, gross	365,247	282,378
Commercial Real Estate Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	365,247	282,378
Non-accruing loans	15,704	14,534
Commercial Real Estate Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	349,543	267,844
Residential Portfolio Segment [Member]
Loans receivable, gross	158,591	153,851
Residential Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	158,591	153,851
Non-accruing loans	3,148	3,854
Residential Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	155,443	149,997
Commercial Portfolio Segment [Member]
Loans receivable, gross	122,810	144,297
Commercial Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	122,810	144,297
Non-accruing loans	4,101	700
Commercial Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	118,709	143,597
Consumer Portfolio Segment [Member]
Loans receivable, gross	59,364	67,635
Consumer Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	59,364	67,635
Non-accruing loans	142	917
Consumer Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	59,222	66,718
Substandard [Member] \| Business Activities Loans [Member]
Loans receivable, gross	32,691	59,864
Non-accruing loans	23,095	20,005
Substandard [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	9,596	39,859
Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	23,068	25,896
Non-accruing loans	15,704	14,534
Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	7,364	11,362
Substandard [Member] \| Residential Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	3,148	3,854
Non-accruing loans	3,148	3,854
Substandard [Member] \| Residential Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	0
Substandard [Member] \| Commercial Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	6,310	29,076
Non-accruing loans	4,101	700
Substandard [Member] \| Commercial Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	2,209	28,376
Substandard [Member] \| Consumer Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	165	1,038
Non-accruing loans	142	917
Substandard [Member] \| Consumer Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	23	121
Substandard [Member] \| Non-Accrual Loans [Member] \| Commercial Portfolio Segment [Member] \| Business Activities Loans [Member]
Non-accruing loans		700
Financial Asset, 30 to 59 Days Past Due [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	939	1,436
Financial Asset, 30 to 59 Days Past Due [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	696	354
Financial Asset, 30 to 59 Days Past Due [Member] \| Residential Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	478
Financial Asset, 30 to 59 Days Past Due [Member] \| Commercial Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	243	603
Financial Asset, 30 to 59 Days Past Due [Member] \| Consumer Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	1
Financial Asset, 30 to 59 Days Past Due [Member] \| Non-Accrual Loans [Member] \| Business Activities Loans [Member]
Loans receivable, gross	0	22
Financial Asset, 30 to 59 Days Past Due [Member] \| Substandard [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	957
Financial Asset, 30 to 59 Days Past Due [Member] \| Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	354
Financial Asset, 30 to 59 Days Past Due [Member] \| Substandard [Member] \| Residential Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	0
Financial Asset, 30 to 59 Days Past Due [Member] \| Substandard [Member] \| Commercial Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	603
Financial Asset, 30 to 59 Days Past Due [Member] \| Substandard [Member] \| Consumer Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	0
Financial Asset, 30 to 59 Days Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	0	0
Financial Asset, 30 to 59 Days Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Residential Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	0	0
Financial Asset, 30 to 59 Days Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Commercial Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	0
Financial Asset, 30 to 59 Days Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Commercial Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross		0
Financial Asset, 30 to 59 Days Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Consumer Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	0	22
Financial Asset, 60 to 89 Days Past Due [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	26	7,034
Financial Asset, 60 to 89 Days Past Due [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	0
Financial Asset, 60 to 89 Days Past Due [Member] \| Residential Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	361
Financial Asset, 60 to 89 Days Past Due [Member] \| Commercial Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	4,322
Financial Asset, 60 to 89 Days Past Due [Member] \| Consumer Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	26	0
Financial Asset, 60 to 89 Days Past Due [Member] \| Non-Accrual Loans [Member] \| Business Activities Loans [Member]
Loans receivable, gross	585	0
Financial Asset, 60 to 89 Days Past Due [Member] \| Substandard [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	113
Financial Asset, 60 to 89 Days Past Due [Member] \| Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	0
Financial Asset, 60 to 89 Days Past Due [Member] \| Substandard [Member] \| Residential Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	0
Financial Asset, 60 to 89 Days Past Due [Member] \| Substandard [Member] \| Commercial Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	113
Financial Asset, 60 to 89 Days Past Due [Member] \| Substandard [Member] \| Consumer Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	0
Financial Asset, 60 to 89 Days Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	0	0
Financial Asset, 60 to 89 Days Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Residential Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	0	0
Financial Asset, 60 to 89 Days Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Commercial Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	491	0
Financial Asset, 60 to 89 Days Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Consumer Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	94	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	2	16
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	9
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Residential Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Commercial Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Consumer Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	2	7
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Non-Accrual Loans [Member] \| Business Activities Loans [Member]
Loans receivable, gross	20,609	9,398
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Substandard [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	9
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	9
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Substandard [Member] \| Residential Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Substandard [Member] \| Commercial Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Substandard [Member] \| Consumer Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	15,704	5,723
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Residential Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	2,419	2,884
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Commercial Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	2,458	700
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Consumer Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	28	91
Financial Asset, Past Due [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	967	8,486
Financial Asset, Past Due [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	696	363
Financial Asset, Past Due [Member] \| Residential Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	839
Financial Asset, Past Due [Member] \| Commercial Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	243	4,925
Financial Asset, Past Due [Member] \| Consumer Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	28	8
Financial Asset, Past Due [Member] \| Non-Accrual Loans [Member] \| Business Activities Loans [Member]
Loans receivable, gross	21,194	9,420
Financial Asset, Past Due [Member] \| Substandard [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	1,079
Financial Asset, Past Due [Member] \| Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	363
Financial Asset, Past Due [Member] \| Substandard [Member] \| Residential Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	0
Financial Asset, Past Due [Member] \| Substandard [Member] \| Commercial Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	716
Financial Asset, Past Due [Member] \| Substandard [Member] \| Consumer Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	0
Financial Asset, Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	15,704	5,723
Financial Asset, Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Residential Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	2,419	2,884
Financial Asset, Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Commercial Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	2,949	700
Financial Asset, Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Consumer Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	122	113
Financial Asset, Not Past Due [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	715,426	701,689
Financial Asset, Not Past Due [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	348,847	267,481
Financial Asset, Not Past Due [Member] \| Residential Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	155,443	149,158
Financial Asset, Not Past Due [Member] \| Commercial Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	118,466	138,672
Financial Asset, Not Past Due [Member] \| Consumer Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	59,194	66,710
Financial Asset, Not Past Due [Member] \| Non-Accrual Loans [Member] \| Business Activities Loans [Member]
Loans receivable, gross	1,901	10,585
Financial Asset, Not Past Due [Member] \| Substandard [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	9,596	38,780
Financial Asset, Not Past Due [Member] \| Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	7,364	10,999
Financial Asset, Not Past Due [Member] \| Substandard [Member] \| Residential Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	0	0
Financial Asset, Not Past Due [Member] \| Substandard [Member] \| Commercial Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	2,209	27,660
Financial Asset, Not Past Due [Member] \| Substandard [Member] \| Consumer Portfolio Segment [Member] \| Business Activities Loans [Member] \| Performing Financial Instruments [Member]
Loans receivable, gross	23	121
Financial Asset, Not Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	0	8,811
Financial Asset, Not Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Residential Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	729	970
Financial Asset, Not Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Commercial Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	1,152	0
Financial Asset, Not Past Due [Member] \| Substandard [Member] \| Non-Accrual Loans [Member] \| Consumer Portfolio Segment [Member] \| Business Activities Loans [Member]
Loans receivable, gross	$ 20	$ 804

Note 4 - Loans Receivables and Allowance for Loan and Lease Losses - Non-accrual Loans (Details) - USD ($)
$ in Thousands

Dec. 31, 2021

Dec. 31, 2020

Loans receivable, gross

$ 739,488

$ 730,180

Business Activities Loans [Member]

Loans receivable, gross

739,488

730,180

Non-accruing loans

23,095