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Note 4 - Loans Receivable and Allowance for Loan and Lease Losses - Delinquency Status of Performing and Non-performing Loans (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Loans receivable, gross $ 818,841  
Business Activities Loans [Member]    
Loans receivable, gross 818,841 $ 812,164 [1]
Non-accruing loans 16,450 18,049
Commercial Real Estate Portfolio Segment [Member]    
Loans receivable, gross 304,492  
Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]    
Loans receivable, gross 304,492 314,414
Non-accruing loans 10,444 11,961
Residential Portfolio Segment [Member]    
Loans receivable, gross 171,795  
Residential Portfolio Segment [Member] | Business Activities Loans [Member]    
Loans receivable, gross 171,795 175,489
Non-accruing loans 3,200 3,228
Commercial Portfolio Segment [Member]    
Loans receivable, gross 179,457  
Commercial Portfolio Segment [Member] | Business Activities Loans [Member]    
Loans receivable, gross 179,457 173,875
Non-accruing loans 2,086 2,094
Consumer Portfolio Segment [Member]    
Loans receivable, gross 96,620  
Consumer Portfolio Segment [Member] | Business Activities Loans [Member]    
Loans receivable, gross 96,620 85,934
Non-accruing loans 720 766
Construction Portfolio Segment [Member]    
Loans receivable, gross 55,255  
Construction Portfolio Segment [Member] | Business Activities Loans [Member]    
Loans receivable, gross 55,255 48,388
Non-accruing loans
Construction to Permanent Portfolio Segment [Member]    
Loans receivable, gross 11,222  
Construction to Permanent Portfolio Segment [Member] | Business Activities Loans [Member]    
Loans receivable, gross 11,222 14,064
Non-accruing loans
Pass [Member] | Business Activities Loans [Member]    
Loans receivable, gross 780,850 777,551
Non-accruing loans
Pass [Member] | Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]    
Loans receivable, gross 288,424 295,982
Non-accruing loans
Pass [Member] | Residential Portfolio Segment [Member] | Business Activities Loans [Member]    
Loans receivable, gross 167,618 170,561
Non-accruing loans
Pass [Member] | Commercial Portfolio Segment [Member] | Business Activities Loans [Member]    
Loans receivable, gross 162,431 163,388
Non-accruing loans
Pass [Member] | Consumer Portfolio Segment [Member] | Business Activities Loans [Member]    
Loans receivable, gross 95,900 85,168
Non-accruing loans
Pass [Member] | Construction Portfolio Segment [Member] | Business Activities Loans [Member]    
Loans receivable, gross 55,255 48,388
Non-accruing loans
Pass [Member] | Construction to Permanent Portfolio Segment [Member] | Business Activities Loans [Member]    
Loans receivable, gross 11,222 14,064
Non-accruing loans
Special Mention [Member] | Business Activities Loans [Member]    
Loans receivable, gross 828 836
Non-accruing loans
Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]    
Loans receivable, gross 383 385
Non-accruing loans
Special Mention [Member] | Residential Portfolio Segment [Member] | Business Activities Loans [Member]    
Loans receivable, gross
Non-accruing loans
Special Mention [Member] | Commercial and Industrial Portfolio Segment [Member] | Business Activities Loans [Member]    
Loans receivable, gross 445 451
Non-accruing loans
Substandard [Member] | Business Activities Loans [Member]    
Loans receivable, gross 37,163  
Non-accruing loans 16,450  
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]    
Loans receivable, gross 15,685 18,047
Non-accruing loans 10,444 11,961
Substandard [Member] | Residential Portfolio Segment [Member] | Business Activities Loans [Member]    
Loans receivable, gross 4,177 4,928
Non-accruing loans 3,200 3,228
Substandard [Member] | Commercial Portfolio Segment [Member] | Business Activities Loans [Member]    
Loans receivable, gross 16,581 10,036
Non-accruing loans 2,086 2,094
Substandard [Member] | Consumer Portfolio Segment [Member] | Business Activities Loans [Member]    
Loans receivable, gross 720 766
Non-accruing loans 720 766
Substandard [Member] | Construction Portfolio Segment [Member] | Business Activities Loans [Member]    
Loans receivable, gross   33,777
Non-accruing loans   18,049
Performing Financial Instruments [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 6,975 4,441
Performing (accruing) loans, current 795,416 789,674
Loans receivable, gross 802,391 794,115
Performing Financial Instruments [Member] | Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 5,112
Performing (accruing) loans, current 288,936 302,453
Loans receivable, gross 294,048 302,453
Performing Financial Instruments [Member] | Residential Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 201 658
Performing (accruing) loans, current 168,394 171,603
Loans receivable, gross 168,595 172,261
Performing Financial Instruments [Member] | Commercial Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 1,359 956
Performing (accruing) loans, current 176,012 170,825
Loans receivable, gross 177,371 171,781
Performing Financial Instruments [Member] | Consumer Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 303 2,827
Performing (accruing) loans, current 95,597 82,341
Loans receivable, gross 95,900 85,168
Performing Financial Instruments [Member] | Construction Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Performing (accruing) loans, current 55,255 48,388
Loans receivable, gross 55,255 48,388
Performing Financial Instruments [Member] | Construction to Permanent Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Performing (accruing) loans, current 11,222 14,064
Loans receivable, gross 11,222 14,064
Performing Financial Instruments [Member] | Pass [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 6,578 4,162
Performing (accruing) loans, current 774,272 773,389
Loans receivable, gross 780,850 777,551
Performing Financial Instruments [Member] | Pass [Member] | Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 5,112
Performing (accruing) loans, current 283,312 295,982
Loans receivable, gross 288,424 295,982
Performing Financial Instruments [Member] | Pass [Member] | Residential Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 201 658
Performing (accruing) loans, current 167,417 169,903
Loans receivable, gross 167,618 170,561
Performing Financial Instruments [Member] | Pass [Member] | Commercial Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 962 677
Performing (accruing) loans, current 161,469 162,711
Loans receivable, gross 162,431 163,388
Performing Financial Instruments [Member] | Pass [Member] | Consumer Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 303 2,827
Performing (accruing) loans, current 95,597 82,341
Loans receivable, gross 95,900 85,168
Performing Financial Instruments [Member] | Pass [Member] | Construction Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Performing (accruing) loans, current 55,255 48,388
Loans receivable, gross 55,255 48,388
Performing Financial Instruments [Member] | Pass [Member] | Construction to Permanent Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Performing (accruing) loans, current 11,222 14,064
Loans receivable, gross 11,222 14,064
Performing Financial Instruments [Member] | Special Mention [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 279
Performing (accruing) loans, current 828 557
Loans receivable, gross 828 836
Performing Financial Instruments [Member] | Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Performing (accruing) loans, current 383 385
Loans receivable, gross 383 385
Performing Financial Instruments [Member] | Special Mention [Member] | Residential Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Performing (accruing) loans, current
Loans receivable, gross
Performing Financial Instruments [Member] | Special Mention [Member] | Commercial and Industrial Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 279
Performing (accruing) loans, current 445 172
Loans receivable, gross 445 451
Performing Financial Instruments [Member] | Substandard [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 397  
Performing (accruing) loans, current 20,316  
Loans receivable, gross 20,713  
Performing Financial Instruments [Member] | Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Performing (accruing) loans, current 5,241 6,086
Loans receivable, gross 5,241 6,086
Performing Financial Instruments [Member] | Substandard [Member] | Residential Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Performing (accruing) loans, current 977 1,700
Loans receivable, gross 977 1,700
Performing Financial Instruments [Member] | Substandard [Member] | Commercial Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 397
Performing (accruing) loans, current 14,098 7,942
Loans receivable, gross 14,495 7,942
Performing Financial Instruments [Member] | Substandard [Member] | Consumer Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Performing (accruing) loans, current
Loans receivable, gross
Performing Financial Instruments [Member] | Substandard [Member] | Construction Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due  
Performing (accruing) loans, current   15,728
Loans receivable, gross   15,728
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 6,975 4,069
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 5,112
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Residential Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 201 658
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Commercial Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 1,359 606
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Consumer Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 303 2,805
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Construction Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Construction to Permanent Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 6,578 3,790
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 5,112
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Residential Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 201 658
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Commercial Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 962 327
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Consumer Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 303 2,805
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Construction Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Construction to Permanent Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 279
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Residential Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Commercial and Industrial Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 279
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 397  
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Residential Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Commercial Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 397
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Consumer Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 30 to 59 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Construction Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due  
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 353
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Residential Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Commercial Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 350
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Consumer Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 3
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Construction Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Construction to Permanent Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 353
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Residential Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Commercial Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 350
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Consumer Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 3
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Construction Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Construction to Permanent Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Residential Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Commercial and Industrial Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due  
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Residential Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Commercial Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Consumer Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, 60 to 89 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Construction Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due  
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 19
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Residential Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Commercial Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Consumer Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 19
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Construction Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Construction to Permanent Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 19
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Residential Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Commercial Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Consumer Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due 19
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Construction Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Pass [Member] | Construction to Permanent Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Residential Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Special Mention [Member] | Commercial and Industrial Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due  
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Residential Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Commercial Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Consumer Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Performing Financial Instruments [Member] | Substandard [Member] | Construction Portfolio Segment [Member] | Business Activities Loans [Member]    
Performing (accruing) loans, past due  
[1]