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Note 4 - Loans Receivable and Related Allowance for Loan Losses (Tables)
 3 Months Ended
Mar. 31, 2021
Notes Tables  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
(Dollar amounts in thousands)
  
March 31, 2021
  
December 31, 2020
Mortgage loans on real estate:
      
 
      
 
Residential first mortgages
   $
298,491
 
   $
308,031
 
Home equity loans and lines of credit
    
83,523
 
    
87,088
 
Commercial real estate
    
285,133
 
    
285,625
 
Total real estate loans
    
667,147
 
    
680,744
 
Other loans:
      
 
      
 
Commercial business
    
84,953
 
    
89,139
 
Consumer
    
43,088
 
    
40,035
 
Total other loans
    
128,041
 
    
129,174
 
Total loans, gross
    
795,188
 
    
809,918
 
Less allowance for loan losses
    
9,685
 
    
9,580
 
Total loans, net
   $
785,503
 
   $
800,338
 
Financing Receivable, Allowance for Credit Loss [Table Text Block]
(Dollar amounts in thousands)
  
Residential Mortgages
  
Home Equity & Lines of Credit
  
Commercial Real Estate
  
Commercial Business
  
Consumer
  
Total
Three months ended March 31, 2021:
                                                
Allowance for loan losses:
                                                
Beginning Balance
   $
2,774
 
   $
620
 
   $
5,180
 
   $
677
 
   $
329
 
   $
9,580
 
Charge-offs
    
—
 
    
—
 
    
(94
)
    
—
 
    
(90
)
    
(184
)
Recoveries
    
—
 
    
8
 
    
—
 
    
—
 
    
6
 
    
14
 
Provision
    
(114
)
    
(43
)
    
386
 
    
(65
)
    
111
 
    
275
 
Ending Balance
   $
2,660
 
   $
585
 
   $
5,472
 
   $
612
 
   $
356
 
   $
9,685
 
                                                 
At March 31, 2021:
      
 
      
 
      
 
      
 
      
 
      
 
Ending ALL balance attributable to loans:                                                
Individually evaluated for impairment   $
1
 
   $
—
 
   $
33
 
   $
6
 
   $
—
 
   $
40
 
Acquired loans collectively evaluated for impairment    
—
 
    
—
 
    
—
 
    
—
 
    
—
 
    
—
 
Originated loans collectively evaluated for impairment
    
2,659
 
    
585
 
    
5,439
 
    
606
 
    
356
 
    
9,645
 
Total   $
2,660
 
   $
585
 
   $
5,472
 
   $
612
 
   $
356
 
   $
9,685
 
Total loans:
                                                
Individually evaluated for impairment
   $
320
 
   $
4
 
   $
1,467
 
   $
129
 
   $
—
 
   $
1,920
 
Acquired loans collectively evaluated for impairment
    
40,182
 
    
7,780
 
    
29,169
 
    
3,389
 
    
901
 
    
81,421
 
Originated loans collectively evaluated for impairment
    
257,989
 
    
75,739
 
    
254,497
 
    
81,435
 
    
42,187
 
    
711,847
 
Total
   $
298,491
 
   $
83,523
 
   $
285,133
 
   $
84,953
 
   $
43,088
 
   $
795,188
 
                                                 
At December 31, 2020:
      
 
      
 
      
 
      
 
      
 
      
 
Ending ALL balance attributable to loans:
                                                
Individually evaluated for impairment
   $
—
 
   $
—
 
   $
40
 
   $
20
 
   $
—
 
   $
60
 
Acquired loans collectively evaluated for impairment
    
—
 
    
—
 
    
—
 
    
—
 
    
—
 
    
—
 
Originated loans collectively evaluated for impairment
    
2,774
 
    
620
 
    
5,140
 
    
657
 
    
329
 
    
9,520
 
Total
   $
2,774
 
   $
620
 
   $
5,180
 
   $
677
 
   $
329
 
   $
9,580
 
Total loans:
      
 
      
 
      
 
      
 
      
 
      
 
Individually evaluated for impairment
   $
329
 
   $
3
 
   $
1,639
 
   $
143
 
   $
—
 
   $
2,114
 
Acquired loans collectively evaluated for impairment
    
44,209
 
    
8,491
 
    
30,913
 
    
5,131
 
    
1,017
 
    
89,761
 
Originated loans collectively evaluated for impairment
    
263,493
 
    
78,594
 
    
253,073
 
    
83,865
 
    
39,018
 
    
718,043
 
Total
   $
308,031
 
   $
87,088
 
   $
285,625
 
   $
89,139
 
   $
40,035
 
   $
809,918
 
                                                 
Three months ended March 31, 2020:
                                                
Allowance for loan losses:                                                
Beginning Balance
   $
2,309
 
   $
626
 
   $
2,898
 
   $
636
 
   $
87
 
   $
6,556
 
Charge-offs
    
(11
)
    
(39
)
    
(73
)
    
—
 
    
(15
)
    
(138
)
Recoveries
    
—
 
    
—
 
    
3
 
    
—
 
    
7
 
    
10
 
Provision
    
31
 
    
54
 
    
606
 
    
45
 
    
56
 
    
792
 
Ending Balance
   $
2,329
 
   $
641
 
   $
3,434
 
   $
681
 
   $
135
 
   $
7,220
 
                                                 
Impaired Financing Receivables [Table Text Block]
(Dollar amounts in thousands)
                                                
   
Impaired Loans with Specific Allowance
   
As of March 31, 2021
  
For the three months ended March 31, 2021
   
Unpaid Principal Balance
  
Recorded Investment
  
Related Allowance
  
Average Recorded Investment
  
Interest Income Recognized in Period
  
Cash Basis Interest Recognized in Period
Residential first mortgages
   $
69
 
   $
69
 
   $
1
 
   $
35
 
   $
1
 
   $
1
 
Home equity and lines of credit
    
—
 
    
—
 
    
—
 
    
—
 
    
—
 
    
—
 
Commercial real estate
    
373
 
    
373
 
    
33
 
    
376
 
    
4
 
    
4
 
Commercial business
    
64
 
    
64
 
    
6
 
    
71
 
    
1
 
    
1
 
Consumer
    
—
 
    
—
 
    
—
 
    
—
 
    
—
 
    
—
 
Total
   $
506
 
   $
506
 
   $
40
 
   $
482
 
   $
6
 
   $
6
 
   
Impaired Loans with No Specific Allowance
   
As of March 31, 2021
  
For the three months ended March 31, 2021
   
Unpaid Principal Balance
  
Recorded Investment
  
Average Recorded Investment
  
Interest Income Recognized in Period
  
Cash Basis Interest Recognized in Period
Residential first mortgages
   $
363
 
   $
251
 
   $
290
 
   $
1
 
   $
1
 
Home equity and lines of credit
    
4
 
    
4
 
    
4
 
    
—
 
    
—
 
Commercial real estate
    
1,110
 
    
1,094
 
    
1,177
 
    
12
 
    
12
 
Commercial business
    
65
 
    
65
 
    
65
 
    
1
 
    
1
 
Consumer
    
—
 
    
—
 
    
—
 
    
—
 
    
—
 
Total
   $
1,542
 
   $
1,414
 
   $
1,536
 
   $
14
 
   $
14
 
(Dollar amounts in thousands)
      
 
      
 
      
 
      
 
      
 
      
 
   
Impaired Loans with Specific Allowance
   
As of December 31, 2020
  
For the year ended December 31, 2020
   
Unpaid Principal Balance
  
Recorded Investment
  
Related Allowance
  
Average Recorded Investment
  
Interest Income Recognized in Period
  
Cash Basis Interest Recognized in Period
Residential first mortgages
   $
—
 
   $
—
 
   $
—
 
   $
43
 
   $
—
 
   $
—
 
Home equity and lines of credit    
—
 
    
—
 
    
—
 
    
2
 
    
—
 
    
—
 
Commercial real estate    
380
 
    
380
 
    
40
 
    
106
 
    
17
 
    
11
 
Commercial business    
78
 
    
78
 
    
20
 
    
53
 
    
5
 
    
4
 
Consumer    
—
 
    
—
 
    
—
 
    
—
 
    
—
 
    
—
 
Total   $
458
 
   $
458
 
   $
60
 
   $
204
 
   $
22
 
   $
15
 
   
Impaired Loans with No Specific Allowance
   
As of December 31, 2020
  
For the year ended December 31, 2020
   
Unpaid Principal Balance
  
Recorded Investment
  
Average Recorded Investment
  
Interest Income Recognized in Period
  
Cash Basis Interest Recognized in Period
Residential first mortgages
   $
440
 
   $
329
 
   $
300
 
   $
7
 
   $
7
 
Home equity and lines of credit
    
3
 
    
3
 
    
2
 
    
—
 
    
—
 
Commercial real estate
    
1,259
 
    
1,259
 
    
1,167
 
    
76
 
    
66
 
Commercial business
    
65
 
    
65
 
    
80
 
    
10
 
    
6
 
Consumer
    
—
 
    
—
 
    
—
 
    
—
 
    
—
 
Total
   $
1,767
 
   $
1,656
 
   $
1,549
 
   $
93
 
   $
79
 
(Dollar amounts in thousands)
      
 
      
 
      
 
      
 
      
 
      
 
   
Impaired Loans with Specific Allowance
   
As of March 31, 2020
  
For the three months ended March 31, 2020
   
Unpaid Principal Balance
  
Recorded Investment
  
Related Allowance
  
Average Recorded Investment
  
Interest Income Recognized in Period
  
Cash Basis Interest Recognized in Period
Residential first mortgages
   $
71
 
   $
71
 
   $
2
 
   $
71
 
   $
1
 
   $
1
 
Home equity and lines of credit
    
4
 
    
4
 
    
—
 
    
4
 
    
—
 
    
—
 
Commercial real estate
    
150
 
    
150
 
    
19
 
    
75
 
    
—
 
    
—
 
Commercial business
    
45
 
    
45
 
    
5
 
    
23
 
    
1
 
    
1
 
Consumer
    
—
 
    
—
 
    
—
 
    
—
 
    
—
 
    
—
 
Total
   $
270
 
   $
270
 
   $
26
 
   $
173
 
   $
2
 
   $
2
 
   
Impaired Loans with No Specific Allowance
   
As of March 31, 2020
  
For the three months ended March 31, 2020
   
Unpaid Principal Balance
  
Recorded Investment
  
Average Recorded Investment
  
Interest Income Recognized in Period
  
Cash Basis Interest Recognized in Period
Residential first mortgages
   $
390
 
   $
278
 
   $
282
 
   $
1
 
   $
1
 
Home equity and lines of credit
    
—
 
    
—
 
    
—
 
    
—
 
    
—
 
Commercial real estate
    
1,067
 
    
1,067
 
    
574
 
    
13
 
    
13
 
Commercial business
    
43
 
    
43
 
    
41
 
    
1
 
    
—
 
Consumer
    
—
 
    
—
 
    
—
 
    
—
 
    
—
 
Total
   $
1,500
 
   $
1,388
 
   $
897
 
   $
15
 
   $
14
 
Financing Receivable Credit Quality Indicators [Table Text Block]
(Dollar amounts in thousands)
      
 
      
 
      
 
      
 
      
 
      
 
   
Not Rated
  
Pass
  
Special Mention
  
Substandard
  
Doubtful
  
Total
March 31, 2021:
      
 
      
 
      
 
      
 
      
 
      
 
Residential first mortgages
   $
296,999
 
   $
—
 
   $
—
 
   $
1,492
 
   $
—
 
   $
298,491
 
Home equity and lines of credit
    
83,298
 
    
—
 
    
—
 
    
225
 
    
—
 
    
83,523
 
Commercial real estate
    
—
 
    
250,095
 
    
14,801
 
    
20,237
 
    
—
 
    
285,133
 
Commercial business
    
—
 
    
78,925
 
    
1,575
 
    
4,453
 
    
—
 
    
84,953
 
Consumer
    
43,046
 
    
—
 
    
—
 
    
42
 
    
—
 
    
43,088
 
Total loans
   $
423,343
 
   $
329,020
 
   $
16,376
 
   $
26,449
 
   $
—
 
   $
795,188
 
                                                 
December 31, 2020:
      
 
      
 
      
 
      
 
      
 
      
 
Residential first mortgages
   $
306,237
 
   $
—
 
   $
—
 
   $
1,794
 
   $
—
 
   $
308,031
 
Home equity and lines of credit
    
86,867
 
    
—
 
    
—
 
    
221
 
    
—
 
    
87,088
 
Commercial real estate
    
—
 
    
249,357
 
    
19,669
 
    
16,599
 
    
—
 
    
285,625
 
Commercial business
    
—
 
    
83,059
 
    
2,054
 
    
4,026
 
    
—
 
    
89,139
 
Consumer
    
39,987
 
    
—
 
    
—
 
    
48
 
    
—
 
    
40,035
 
Total loans
   $
433,091
 
   $
332,416
 
   $
21,723
 
   $
22,688
 
   $
—
 
   $
809,918
 
Financing Receivable, Past Due [Table Text Block]
(Dollar amounts in thousands)
      
 
      
 
      
 
      
 
      
 
      
 
   
Performing
  
Nonperforming
    
 
 
   
Accruing Loans Not Past Due
  
Accruing 30-59 Days Past Due
  
Accruing 60-89 Days Past Due
  
Accruing 90+ Days Past Due
  
Nonaccrual
  
Total
March 31, 2021:
      
 
      
 
      
 
      
 
      
 
      
 
Residential first mortgages
   $
295,560
 
   $
1,213
 
   $
226
 
   $
191
 
   $
1,301
 
   $
298,491
 
Home equity and lines of credit
    
82,810
 
    
241
 
    
247
 
    
151
 
    
74
 
    
83,523
 
Commercial real estate
    
282,799
 
    
844
 
    
—
 
    
41
 
    
1,449
 
    
285,133
 
Commercial business
    
84,553
 
    
15
 
    
—
 
    
239
 
    
146
 
    
84,953
 
Consumer
    
42,992
 
    
20
 
    
34
 
    
—
 
    
42
 
    
43,088
 
Total loans
   $
788,714
 
   $
2,333
 
   $
507
 
   $
622
 
   $
3,012
 
   $
795,188
 
                                                 
December 31, 2020:
      
 
      
 
      
 
      
 
      
 
      
 
Residential first mortgages
   $
304,161
 
   $
1,836
 
   $
239
 
   $
176
 
   $
1,619
 
   $
308,031
 
Home equity and lines of credit
    
86,093
 
    
446
 
    
328
 
    
146
 
    
75
 
    
87,088
 
Commercial real estate
    
283,373
 
    
580
 
    
41
 
    
18
 
    
1,613
 
    
285,625
 
Commercial business
    
88,614
 
    
72
 
    
46
 
    
239
 
    
168
 
    
89,139
 
Consumer
    
39,917
 
    
28
 
    
42
 
    
—
 
    
48
 
    
40,035
 
Total loans
   $
802,158
 
   $
2,962
 
   $
696
 
   $
579
 
   $
3,523
 
   $
809,918
 
Financing Receivable, Nonaccrual [Table Text Block]
(Dollar amounts in thousands)
      
 
      
 
      
 
      
 
      
 
   
Not Past Due
  
30-59 Days Past Due
  
60-89 Days Past Due
  
90 Days + Past Due
  
Total
March 31, 2021:
      
 
      
 
      
 
      
 
      
 
Residential first mortgages
   $
214
 
   $
69
 
   $
—
 
   $
1,018
 
   $
1,301
 
Home equity and lines of credit
    
4
 
    
—
 
    
—
 
    
70
 
    
74
 
Commercial real estate
    
876
 
    
—
 
    
—
 
    
573
 
    
1,449
 
Commercial business
    
146
 
    
—
 
    
—
 
    
—
 
    
146
 
Consumer
    
—
 
    
—
 
    
—
 
    
42
 
    
42
 
Total loans
   $
1,240
 
   $
69
 
   $
—
 
   $
1,703
 
   $
3,012
 
                                         
December 31, 2020:
      
 
      
 
      
 
      
 
      
 
Residential first mortgages
   $
220
 
   $
70
 
   $
—
 
   $
1,329
 
   $
1,619
 
Home equity and lines of credit
    
4
 
    
—
 
    
—
 
    
71
 
    
75
 
Commercial real estate
    
1,016
 
    
—
 
    
24
 
    
573
 
    
1,613
 
Commercial business
    
168
 
    
—
 
    
—
 
    
—
 
    
168
 
Consumer
    
—
 
    
—
 
    
—
 
    
48
 
    
48
 
Total loans
   $
1,408
 
   $
70
 
   $
24
 
   $
2,021
 
   $
3,523