Loans and allowance for loan losses - Allowance for loan losses (Details) - USD ($)
$ in Thousands |
3 Months Ended |
9 Months Ended |
12 Months Ended |
Sep. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2020 |
Sep. 30, 2019 |
Dec. 31, 2019 |
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
| Beginning Balance |
|
|
$ 3,186
|
$ 3,051
|
$ 3,051
|
| Provision for (Recovery of) Loan Losses |
$ 250
|
|
950
|
0
|
135
|
| Charge-offs |
(23)
|
$ (30)
|
(188)
|
(105)
|
(218)
|
| Recoveries |
64
|
84
|
102
|
155
|
218
|
| Ending Balance |
4,050
|
3,101
|
4,050
|
3,101
|
3,186
|
| Commercial and industrial loans (except those secured by real estate) |
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
| Beginning Balance |
|
385
|
572
|
|
|
| Provision for (Recovery of) Loan Losses |
|
(19)
|
|
|
|
| Recoveries |
|
6
|
|
|
|
| Ending Balance |
348
|
372
|
348
|
372
|
572
|
| Guaranteed student loans [Member] |
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
| Beginning Balance |
|
|
108
|
|
|
| Ending Balance |
97
|
|
97
|
|
108
|
| Consumer And Other [Member] |
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
| Beginning Balance |
|
|
54
|
|
|
| Ending Balance |
311
|
|
311
|
|
54
|
| Construction and land development |
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
| Beginning Balance |
508
|
190
|
185
|
262
|
262
|
| Provision for (Recovery of) Loan Losses |
|
18
|
320
|
(63)
|
(86)
|
| Recoveries |
14
|
|
17
|
9
|
9
|
| Ending Balance |
522
|
208
|
522
|
208
|
185
|
| Construction and land development | Residential [Member] |
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
| Beginning Balance |
213
|
31
|
48
|
42
|
42
|
| Provision for (Recovery of) Loan Losses |
(23)
|
16
|
139
|
(2)
|
(1)
|
| Recoveries |
14
|
|
17
|
7
|
7
|
| Ending Balance |
204
|
47
|
204
|
47
|
48
|
| Construction and land development | Commercial [Member] |
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
| Beginning Balance |
295
|
159
|
137
|
220
|
220
|
| Provision for (Recovery of) Loan Losses |
23
|
2
|
181
|
(61)
|
(85)
|
| Recoveries |
|
|
|
2
|
2
|
| Ending Balance |
318
|
161
|
318
|
161
|
137
|
| Commercial real estate |
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
| Beginning Balance |
2,153
|
1,493
|
1,589
|
1,435
|
1,435
|
| Provision for (Recovery of) Loan Losses |
292
|
36
|
856
|
94
|
154
|
| Ending Balance |
2,445
|
1,529
|
2,445
|
1,529
|
1,589
|
| Commercial real estate | Owner Occupied [Member] |
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
| Beginning Balance |
904
|
659
|
671
|
673
|
673
|
| Provision for (Recovery of) Loan Losses |
118
|
4
|
351
|
(10)
|
(2)
|
| Ending Balance |
1,022
|
663
|
1,022
|
663
|
671
|
| Commercial real estate | Non-Owner Occupied [Member] |
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
| Beginning Balance |
1,202
|
747
|
831
|
673
|
673
|
| Provision for (Recovery of) Loan Losses |
171
|
27
|
542
|
101
|
158
|
| Ending Balance |
1,373
|
774
|
1,373
|
774
|
831
|
| Commercial real estate | Multifamily [Member] |
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
| Beginning Balance |
47
|
85
|
85
|
87
|
87
|
| Provision for (Recovery of) Loan Losses |
1
|
5
|
(37)
|
3
|
(2)
|
| Ending Balance |
48
|
90
|
48
|
90
|
85
|
| Commercial real estate | Farmland [Member] |
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
| Beginning Balance |
|
2
|
2
|
2
|
2
|
| Provision for (Recovery of) Loan Losses |
2
|
|
|
|
|
| Ending Balance |
2
|
2
|
2
|
2
|
2
|
| Consumer real estate |
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
| Beginning Balance |
281
|
|
678
|
680
|
680
|
| Provision for (Recovery of) Loan Losses |
1
|
(61)
|
(407)
|
(108)
|
(62)
|
| Charge-offs |
|
|
|
|
(35)
|
| Recoveries |
45
|
58
|
56
|
85
|
95
|
| Ending Balance |
327
|
657
|
327
|
657
|
678
|
| Consumer real estate | Home equity lines [Member] |
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
| Beginning Balance |
40
|
233
|
271
|
244
|
244
|
| Provision for (Recovery of) Loan Losses |
(30)
|
(13)
|
(261)
|
(36)
|
50
|
| Charge-offs |
|
|
|
|
(35)
|
| Recoveries |
|
|
|
12
|
12
|
| Ending Balance |
10
|
220
|
10
|
220
|
271
|
| Consumer real estate | First Deed of Trust [Member] |
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
| Beginning Balance |
166
|
367
|
343
|
385
|
385
|
| Provision for (Recovery of) Loan Losses |
(7)
|
(1)
|
(188)
|
(24)
|
(56)
|
| Recoveries |
1
|
3
|
5
|
8
|
14
|
| Ending Balance |
160
|
369
|
160
|
369
|
343
|
| Consumer real estate | Second Deed of Trust [Member] |
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
| Beginning Balance |
75
|
60
|
64
|
51
|
51
|
| Provision for (Recovery of) Loan Losses |
38
|
(47)
|
42
|
(48)
|
(56)
|
| Recoveries |
44
|
55
|
51
|
65
|
69
|
| Ending Balance |
157
|
68
|
157
|
68
|
64
|
| Commercial and industrial loans | Commercial and industrial loans (except those secured by real estate) |
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
| Beginning Balance |
317
|
|
572
|
308
|
308
|
| Provision for (Recovery of) Loan Losses |
27
|
|
(114)
|
41
|
239
|
| Charge-offs |
|
|
(135)
|
(15)
|
(64)
|
| Recoveries |
4
|
|
25
|
38
|
89
|
| Ending Balance |
348
|
372
|
348
|
372
|
572
|
| Commercial and industrial loans | Guaranteed student loans [Member] |
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
| Beginning Balance |
101
|
109
|
108
|
121
|
121
|
| Provision for (Recovery of) Loan Losses |
6
|
21
|
25
|
63
|
80
|
| Charge-offs |
(10)
|
(23)
|
(36)
|
(77)
|
(93)
|
| Ending Balance |
97
|
107
|
97
|
107
|
108
|
| Commercial and industrial loans | Consumer And Other [Member] |
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
| Beginning Balance |
40
|
34
|
30
|
34
|
34
|
| Provision for (Recovery of) Loan Losses |
10
|
(9)
|
21
|
(6)
|
(3)
|
| Charge-offs |
(13)
|
(7)
|
(17)
|
(13)
|
(26)
|
| Recoveries |
1
|
20
|
4
|
23
|
25
|
| Ending Balance |
38
|
38
|
38
|
38
|
30
|
| Commercial and industrial loans | Unallocated [Member] |
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
| Beginning Balance |
359
|
176
|
24
|
211
|
211
|
| Provision for (Recovery of) Loan Losses |
(86)
|
14
|
249
|
(21)
|
(187)
|
| Ending Balance |
$ 273
|
$ 190
|
$ 273
|
$ 190
|
$ 24
|