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Note 8 - Loans and Related Allowance for Loan and Lease Losses - Past Due Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Loans and Leases Receivable, Net of Deferred Income, Total	$ 1,010,282	$ 1,104,085
Financial Asset, Not Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	1,006,523	1,095,570
Financial Asset, 30 to 59 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	1,709	5,121
Financial Asset, 60 to 89 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	925	1,795
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	1,125	1,599
Financial Asset, Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	3,759	8,515
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	110,883	103,121
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Financial Asset, Not Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	110,883	102,587
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	0	418
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	0	0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	0	116
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Financial Asset, Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	0	534
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	310,222	309,424
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Financial Asset, Not Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	309,849	305,613
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	0	1,844
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	0	1,373
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	373	594
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Financial Asset, Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	373	3,811
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	30,762	39,562
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Financial Asset, Not Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	30,762	39,562
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	0	0
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	0	0
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	0	0
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Financial Asset, Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	0	0
Residential Portfolio Segment [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	232,020	233,995
Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	230,028	230,996
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	1,233	2,364
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	283	95
Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	476	540
Residential Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	1,992	2,999
Commercial And Industrial [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	163,052	232,044
Commercial And Industrial [Member] | Financial Asset, Not Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	162,569	231,534
Commercial And Industrial [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	299	260
Commercial And Industrial [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	184	219
Commercial And Industrial [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	0	31
Commercial And Industrial [Member] | Financial Asset, Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	483	510
Home Equity Lines of Credit [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	105,450	112,543
Home Equity Lines of Credit [Member] | Financial Asset, Not Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	104,742	112,325
Home Equity Lines of Credit [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	175	120
Home Equity Lines of Credit [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	458	0
Home Equity Lines of Credit [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	75	98
Home Equity Lines of Credit [Member] | Financial Asset, Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	708	218
Construction and Other [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	49,378	63,573
Construction and Other [Member] | Financial Asset, Not Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	49,378	63,529
Construction and Other [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	0	44
Construction and Other [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	0	0
Construction and Other [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	0	0
Construction and Other [Member] | Financial Asset, Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	0	44
Consumer Portfolio Segment [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	8,515	9,823
Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	8,312	9,424
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	2	71
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	0	108
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	201	220
Consumer Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income, Total	$ 203	$ 399

X

- Definition

Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5074-111524

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