Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned - Risk Category of Loans by Class (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Loans	$ 1,121,243	$ 1,126,664
Current	1,111,021	1,114,951
Nonaccrual	4,352	4,440
Financial Asset, 30 to 59 Days Past Due [Member]
Past due	4,545	4,197
Financial Asset, 60 to 89 Days Past Due [Member]
Past due	1,147	2,636
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	178	440
Commercial Portfolio Segment [Member]
Loans	221,836	222,085
Current	221,263	221,199
Nonaccrual	123	197
Commercial Portfolio Segment [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past due	215	531
Commercial Portfolio Segment [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past due	235	158
Commercial Portfolio Segment [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	0	0
Commercial Portfolio Segment [Member] \| Term Loan Originated Prior [Member]
Loans	25,517
Commercial Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member]
Loans	7,244
Commercial Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member]
Loans	28,606
Commercial Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member]
Loans	13,510
Commercial Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member]
Loans	23,572
Commercial Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member]
Loans	48,590
Commercial Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member]
Loans	12,431
Commercial Portfolio Segment [Member] \| Total Term Loans [Member]
Loans	159,470
Commercial Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member]
Loans	62,366
Construction Portfolio Segment [Member]
Loans	2,214	1,618
Current	2,214	1,618
Nonaccrual	0	0
Construction Portfolio Segment [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past due	0	0
Construction Portfolio Segment [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past due	0	0
Construction Portfolio Segment [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	0	0
Construction Portfolio Segment [Member] \| Term Loan Originated Prior [Member]
Loans	0
Construction Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member]
Loans	0
Construction Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member]
Loans	0
Construction Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member]
Loans	0
Construction Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member]
Loans	0
Construction Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member]
Loans	0
Construction Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member]
Loans	0
Construction Portfolio Segment [Member] \| Total Term Loans [Member]
Loans	0
Construction Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member]
Loans	2,214
Commercial Real Estate Portfolio Segment [Member]
Loans	579,319	578,758
Current	574,045	573,809
Nonaccrual	3,836	4,096
Commercial Real Estate Portfolio Segment [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past due	1,438	432
Commercial Real Estate Portfolio Segment [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past due	0	421
Commercial Real Estate Portfolio Segment [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	0	0
Commercial Real Estate Portfolio Segment [Member] \| Term Loan Originated Prior [Member]
Loans	118,825
Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member]
Loans	54,915
Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member]
Loans	57,526
Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member]
Loans	126,941
Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member]
Loans	98,166
Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member]
Loans	98,997
Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member]
Loans	23,949
Commercial Real Estate Portfolio Segment [Member] \| Total Term Loans [Member]
Loans	579,319
Commercial Real Estate Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member]
Loans	0
Residential Portfolio Segment [Member]
Loans	29,924	32,748
Current	29,116	31,934
Nonaccrual	0	0
Residential Portfolio Segment [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past due	784	274
Residential Portfolio Segment [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past due	24	540
Residential Portfolio Segment [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	0	0
Residential Portfolio Segment [Member] \| Term Loan Originated Prior [Member]
Loans	29,924
Residential Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member]
Loans	0
Residential Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member]
Loans	0
Residential Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member]
Loans	0
Residential Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member]
Loans	0
Residential Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member]
Loans	0
Residential Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member]
Loans	0
Residential Portfolio Segment [Member] \| Total Term Loans [Member]
Loans	29,924
Residential Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member]
Loans	0
Consumer Portfolio Segment [Member]
Loans	287,950	291,455
Current	284,383	286,391
Nonaccrual	393	147
Consumer Portfolio Segment [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past due	2,108	2,960
Consumer Portfolio Segment [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past due	888	1,517
Consumer Portfolio Segment [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	178	440
Consumer Portfolio Segment [Member] \| Term Loan Originated Prior [Member]
Loans	7,423
Current	7,333
Nonaccrual	0
Consumer Portfolio Segment [Member] \| Term Loan Originated Prior [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past due	57
Consumer Portfolio Segment [Member] \| Term Loan Originated Prior [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past due	26
Consumer Portfolio Segment [Member] \| Term Loan Originated Prior [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	7
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member]
Loans	10,469
Current	10,129
Nonaccrual	0
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past due	225
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past due	107
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	8
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member]
Loans	26,699
Current	26,298
Nonaccrual	0
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past due	270
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past due	108
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	23
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member]
Loans	30,495
Current	30,001
Nonaccrual	0
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past due	329
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past due	148
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	17
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member]
Loans	63,433
Current	62,513
Nonaccrual	0
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past due	543
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past due	301
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	76
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member]
Loans	82,270
Current	81,490
Nonaccrual	0
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past due	541
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past due	196
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	43
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member]
Loans	30,145
Current	30,103
Nonaccrual	0
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past due	42
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past due	0
Consumer Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	0
Consumer Portfolio Segment [Member] \| Total Term Loans [Member]
Loans	250,934
Current	247,867
Nonaccrual	0
Consumer Portfolio Segment [Member] \| Total Term Loans [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past due	2,007
Consumer Portfolio Segment [Member] \| Total Term Loans [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past due	886
Consumer Portfolio Segment [Member] \| Total Term Loans [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	174
Consumer Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member]
Loans	37,016
Current	36,516
Nonaccrual	393
Consumer Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member] \| Financial Asset, 30 to 59 Days Past Due [Member]
Past due	101
Consumer Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member] \| Financial Asset, 60 to 89 Days Past Due [Member]
Past due	2
Consumer Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	4
Pass [Member]
Loans	1,097,507	1,103,164
Pass [Member] \| Commercial Portfolio Segment [Member]
Loans	213,241	213,542
Pass [Member] \| Commercial Portfolio Segment [Member] \| Term Loan Originated Prior [Member]
Loans	25,425
Pass [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member]
Loans	7,244
Pass [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member]
Loans	28,594
Pass [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member]
Loans	13,493
Pass [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member]
Loans	23,572
Pass [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member]
Loans	48,590
Pass [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member]
Loans	4,423
Pass [Member] \| Commercial Portfolio Segment [Member] \| Total Term Loans [Member]
Loans	151,341
Pass [Member] \| Commercial Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member]
Loans	61,900
Pass [Member] \| Construction Portfolio Segment [Member]
Loans	2,214	1,618
Pass [Member] \| Construction Portfolio Segment [Member] \| Term Loan Originated Prior [Member]
Loans	0
Pass [Member] \| Construction Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member]
Loans	0
Pass [Member] \| Construction Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member]
Loans	0
Pass [Member] \| Construction Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member]
Loans	0
Pass [Member] \| Construction Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member]
Loans	0
Pass [Member] \| Construction Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member]
Loans	0
Pass [Member] \| Construction Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member]
Loans	0
Pass [Member] \| Construction Portfolio Segment [Member] \| Total Term Loans [Member]
Loans	0
Pass [Member] \| Construction Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member]
Loans	2,214
Pass [Member] \| Commercial Real Estate Portfolio Segment [Member]
Loans	567,966	567,525
Pass [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loan Originated Prior [Member]
Loans	115,511
Pass [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member]
Loans	53,588
Pass [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member]
Loans	51,776
Pass [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member]
Loans	126,831
Pass [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member]
Loans	98,166
Pass [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member]
Loans	98,997
Pass [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member]
Loans	23,097
Pass [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Total Term Loans [Member]
Loans	567,966
Pass [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member]
Loans	0
Pass [Member] \| Residential Portfolio Segment [Member]
Loans	28,512	31,055
Pass [Member] \| Residential Portfolio Segment [Member] \| Term Loan Originated Prior [Member]
Loans	28,512
Pass [Member] \| Residential Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member]
Loans	0
Pass [Member] \| Residential Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member]
Loans	0
Pass [Member] \| Residential Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member]
Loans	0
Pass [Member] \| Residential Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member]
Loans	0
Pass [Member] \| Residential Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member]
Loans	0
Pass [Member] \| Residential Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member]
Loans	0
Pass [Member] \| Residential Portfolio Segment [Member] \| Total Term Loans [Member]
Loans	28,512
Pass [Member] \| Residential Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member]
Loans	0
Pass [Member] \| Consumer Portfolio Segment [Member]
Loans	285,574	289,424
Substandard [Member]
Loans	23,109	22,798
Substandard [Member] \| Commercial Portfolio Segment [Member]
Loans	8,595	8,543
Substandard [Member] \| Commercial Portfolio Segment [Member] \| Term Loan Originated Prior [Member]
Loans	92
Substandard [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member]
Loans	0
Substandard [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member]
Loans	12
Substandard [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member]
Loans	17
Substandard [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member]
Loans	0
Substandard [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member]
Loans	0
Substandard [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member]
Loans	8,008
Substandard [Member] \| Commercial Portfolio Segment [Member] \| Total Term Loans [Member]
Loans	8,129
Substandard [Member] \| Commercial Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member]
Loans	466
Substandard [Member] \| Construction Portfolio Segment [Member]
Loans	0	0
Substandard [Member] \| Construction Portfolio Segment [Member] \| Term Loan Originated Prior [Member]
Loans	0
Substandard [Member] \| Construction Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member]
Loans	0
Substandard [Member] \| Construction Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member]
Loans	0
Substandard [Member] \| Construction Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member]
Loans	0
Substandard [Member] \| Construction Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member]
Loans	0
Substandard [Member] \| Construction Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member]
Loans	0
Substandard [Member] \| Construction Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member]
Loans	0
Substandard [Member] \| Construction Portfolio Segment [Member] \| Total Term Loans [Member]
Loans	0
Substandard [Member] \| Construction Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member]
Loans	0
Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member]
Loans	11,353	11,233
Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loan Originated Prior [Member]
Loans	3,314
Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member]
Loans	1,327
Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member]
Loans	5,750
Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member]
Loans	110
Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member]
Loans	0
Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member]
Loans	0
Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member]
Loans	852
Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Total Term Loans [Member]
Loans	11,353
Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member]
Loans	0
Substandard [Member] \| Residential Portfolio Segment [Member]
Loans	1,412	1,693
Substandard [Member] \| Residential Portfolio Segment [Member] \| Term Loan Originated Prior [Member]
Loans	1,412
Substandard [Member] \| Residential Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member]
Loans	0
Substandard [Member] \| Residential Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member]
Loans	0
Substandard [Member] \| Residential Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member]
Loans	0
Substandard [Member] \| Residential Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member]
Loans	0
Substandard [Member] \| Residential Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member]
Loans	0
Substandard [Member] \| Residential Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member]
Loans	0
Substandard [Member] \| Residential Portfolio Segment [Member] \| Total Term Loans [Member]
Loans	1,412
Substandard [Member] \| Residential Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member]
Loans	0
Substandard [Member] \| Consumer Portfolio Segment [Member]
Loans	1,749	1,329
Doubtful [Member]
Loans	325	308
Doubtful [Member] \| Commercial Portfolio Segment [Member]
Loans	0	0
Doubtful [Member] \| Commercial Portfolio Segment [Member] \| Term Loan Originated Prior [Member]
Loans	0
Doubtful [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member]
Loans	0
Doubtful [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member]
Loans	0
Doubtful [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member]
Loans	0
Doubtful [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member]
Loans	0
Doubtful [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member]
Loans	0
Doubtful [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member]
Loans	0
Doubtful [Member] \| Commercial Portfolio Segment [Member] \| Total Term Loans [Member]
Loans	0
Doubtful [Member] \| Commercial Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member]
Loans	0
Doubtful [Member] \| Construction Portfolio Segment [Member]
Loans	0	0
Doubtful [Member] \| Construction Portfolio Segment [Member] \| Term Loan Originated Prior [Member]
Loans	0
Doubtful [Member] \| Construction Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member]
Loans	0
Doubtful [Member] \| Construction Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member]
Loans	0
Doubtful [Member] \| Construction Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member]
Loans	0
Doubtful [Member] \| Construction Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member]
Loans	0
Doubtful [Member] \| Construction Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member]
Loans	0
Doubtful [Member] \| Construction Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member]
Loans	0
Doubtful [Member] \| Construction Portfolio Segment [Member] \| Total Term Loans [Member]
Loans	0
Doubtful [Member] \| Construction Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member]
Loans	0
Doubtful [Member] \| Commercial Real Estate Portfolio Segment [Member]
Loans	0	0
Doubtful [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loan Originated Prior [Member]
Loans	0
Doubtful [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member]
Loans	0
Doubtful [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member]
Loans	0
Doubtful [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member]
Loans	0
Doubtful [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member]
Loans	0
Doubtful [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member]
Loans	0
Doubtful [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member]
Loans	0
Doubtful [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Total Term Loans [Member]
Loans	0
Doubtful [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member]
Loans	0
Doubtful [Member] \| Residential Portfolio Segment [Member]
Loans	0	0
Doubtful [Member] \| Residential Portfolio Segment [Member] \| Term Loan Originated Prior [Member]
Loans	0
Doubtful [Member] \| Residential Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member]
Loans	0
Doubtful [Member] \| Residential Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member]
Loans	0
Doubtful [Member] \| Residential Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member]
Loans	0
Doubtful [Member] \| Residential Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member]
Loans	0
Doubtful [Member] \| Residential Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member]
Loans	0
Doubtful [Member] \| Residential Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member]
Loans	0
Doubtful [Member] \| Residential Portfolio Segment [Member] \| Total Term Loans [Member]
Loans	0
Doubtful [Member] \| Residential Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member]
Loans	0
Doubtful [Member] \| Consumer Portfolio Segment [Member]
Loans	325	308
Unlikely to be Collected Financing Receivable [Member]
Loans	302	394
Unlikely to be Collected Financing Receivable [Member] \| Commercial Portfolio Segment [Member]
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] \| Commercial Portfolio Segment [Member] \| Term Loan Originated Prior [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2016 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2017 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2018 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2019 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] \| Commercial Portfolio Segment [Member] \| Term Loans Originated in 2020 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] \| Commercial Portfolio Segment [Member] \| Total Term Loans [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] \| Commercial Portfolio Segment [Member] \| Revolving Loans Amortized Cost Basis [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] \| Construction Portfolio Segment [Member]
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] \| Construction Portfolio Segment [Member] \| Term Loan Originated Prior [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] \| Construction Portfolio Segment [Member] \| Term Loans Originated in 2015 [Member]

Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned - Risk Category of Loans by Class (Details) - USD ($)
$ in Thousands