Note 8 - Loans and Related Allowance for Loan and Lease Losses - Classes of the Loan Portfolio Summarized by Credit Quality (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Loans	$ 998,000	$ 984,258
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied Loan [Member]
Loans	113,272	102,386
Commercial Real Estate Portfolio Segment [Member] \| Non-owner occupied Loan [Member]
Loans	292,775	302,180
Commercial Real Estate Portfolio Segment [Member] \| Multifamily Loan [Member]
Loans	52,276	62,028
Residential Portfolio Segment [Member]
Loans	233,900	234,798
Commercial And Industrial [Member]
Loans	106,797	89,527
Home Equity Lines of Credit [Member]
Loans	114,933	112,248
Construction and Other [Member]
Loans	71,186	66,680
Consumer Portfolio Segment [Member]
Loans	12,861	14,411
Pass [Member]
Loans	952,553	957,939
Pass [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied Loan [Member]
Loans	106,356	95,518
Pass [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Non-owner occupied Loan [Member]
Loans	275,603	292,192
Pass [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Multifamily Loan [Member]
Loans	40,685	62,028
Pass [Member] \| Residential Portfolio Segment [Member]
Loans	231,140	231,633
Pass [Member] \| Commercial And Industrial [Member]
Loans	101,055	84,136
Pass [Member] \| Home Equity Lines of Credit [Member]
Loans	113,675	111,354
Pass [Member] \| Construction and Other [Member]
Loans	71,186	66,680
Pass [Member] \| Consumer Portfolio Segment [Member]
Loans	12,853	14,398
Special Mention [Member]
Loans	11,683	11,028
Special Mention [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied Loan [Member]
Loans	3,938	3,951
Special Mention [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Non-owner occupied Loan [Member]
Loans	3,375	3,038
Special Mention [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Multifamily Loan [Member]
Loans
Special Mention [Member] \| Residential Portfolio Segment [Member]
Loans	414	420
Special Mention [Member] \| Commercial And Industrial [Member]
Loans	3,956	3,619
Special Mention [Member] \| Home Equity Lines of Credit [Member]
Loans
Special Mention [Member] \| Construction and Other [Member]
Loans
Substandard [Member]
Loans	33,764	15,291
Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied Loan [Member]
Loans	2,978	2,917
Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Non-owner occupied Loan [Member]
Loans	13,797	6,950
Substandard [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Multifamily Loan [Member]
Loans	11,591
Substandard [Member] \| Residential Portfolio Segment [Member]
Loans	2,346	2,745
Substandard [Member] \| Commercial And Industrial [Member]
Loans	1,786	1,772
Substandard [Member] \| Home Equity Lines of Credit [Member]
Loans	1,258	894
Substandard [Member] \| Construction and Other [Member]
Loans
Substandard [Member] \| Consumer Portfolio Segment [Member]
Loans	8	13
Doubtful [Member]
Loans
Doubtful [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied Loan [Member]
Loans
Doubtful [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Non-owner occupied Loan [Member]
Loans
Doubtful [Member] \| Commercial Real Estate Portfolio Segment [Member] \| Multifamily Loan [Member]
Loans
Doubtful [Member] \| Residential Portfolio Segment [Member]
Loans
Doubtful [Member] \| Commercial And Industrial [Member]
Loans
Doubtful [Member] \| Home Equity Lines of Credit [Member]
Loans
Doubtful [Member] \| Construction and Other [Member]
Loans

Note 8 - Loans and Related Allowance for Loan and Lease Losses - Classes of the Loan Portfolio Summarized by Credit Quality (Details) - USD ($)
$ in Thousands