Loans and allowance for loan losses - Loans evaluated for impairment (Details) - USD ($)
$ in Thousands |
Sep. 30, 2020 |
Jun. 30, 2020 |
Mar. 31, 2020 |
Dec. 31, 2019 |
Sep. 30, 2019 |
Jun. 30, 2019 |
Mar. 31, 2019 |
Dec. 31, 2018 |
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
|
|
|
| Allowance Ending Balance |
$ 4,050
|
|
$ 3,759
|
$ 3,186
|
$ 3,101
|
|
$ 3,047
|
$ 3,051
|
| Allowance Individually Evaluated for Impairment |
104
|
|
|
159
|
|
|
|
|
| Allowance Collectively Evaluated for Impairment |
3,946
|
|
|
3,027
|
|
|
|
|
| Loans Ending Balance |
600,089
|
|
|
429,295
|
|
|
|
|
| Loans Individually Evaluated for Impairment |
9,831
|
|
|
9,372
|
|
|
|
|
| Loans Collectively Evaluated for Impairment |
590,258
|
|
|
419,923
|
|
|
|
|
| Construction and land development |
|
|
|
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
|
|
|
| Allowance Ending Balance |
522
|
$ 508
|
|
185
|
208
|
$ 190
|
|
262
|
| Allowance Collectively Evaluated for Impairment |
522
|
|
|
185
|
|
|
|
|
| Loans Ending Balance |
33,337
|
|
|
31,950
|
|
|
|
|
| Loans Individually Evaluated for Impairment |
289
|
|
|
337
|
|
|
|
|
| Loans Collectively Evaluated for Impairment |
33,048
|
|
|
31,613
|
|
|
|
|
| Commercial real estate |
|
|
|
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
|
|
|
| Allowance Ending Balance |
2,445
|
2,153
|
|
1,589
|
1,529
|
1,493
|
|
1,435
|
| Allowance Individually Evaluated for Impairment |
3
|
|
|
15
|
|
|
|
|
| Allowance Collectively Evaluated for Impairment |
2,442
|
|
|
1,574
|
|
|
|
|
| Loans Ending Balance |
224,863
|
|
|
228,349
|
|
|
|
|
| Loans Individually Evaluated for Impairment |
5,937
|
|
|
5,807
|
|
|
|
|
| Loans Collectively Evaluated for Impairment |
218,926
|
|
|
222,542
|
|
|
|
|
| Consumer real estate |
|
|
|
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
|
|
|
| Allowance Ending Balance |
327
|
281
|
|
678
|
657
|
|
$ 660
|
680
|
| Allowance Individually Evaluated for Impairment |
85
|
|
|
9
|
|
|
|
|
| Allowance Collectively Evaluated for Impairment |
242
|
|
|
669
|
|
|
|
|
| Loans Ending Balance |
85,766
|
|
|
87,776
|
|
|
|
|
| Loans Individually Evaluated for Impairment |
3,288
|
|
|
2,882
|
|
|
|
|
| Loans Collectively Evaluated for Impairment |
82,478
|
|
|
84,894
|
|
|
|
|
| Residential [Member] | Construction and land development |
|
|
|
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
|
|
|
| Allowance Ending Balance |
204
|
213
|
|
48
|
47
|
31
|
|
42
|
| Allowance Collectively Evaluated for Impairment |
204
|
|
|
48
|
|
|
|
|
| Loans Ending Balance |
7,723
|
|
|
7,887
|
|
|
|
|
| Loans Collectively Evaluated for Impairment |
7,723
|
|
|
7,887
|
|
|
|
|
| Commercial [Member] | Construction and land development |
|
|
|
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
|
|
|
| Allowance Ending Balance |
318
|
295
|
|
137
|
161
|
159
|
|
220
|
| Allowance Collectively Evaluated for Impairment |
318
|
|
|
137
|
|
|
|
|
| Loans Ending Balance |
25,614
|
|
|
24,063
|
|
|
|
|
| Loans Individually Evaluated for Impairment |
289
|
|
|
337
|
|
|
|
|
| Loans Collectively Evaluated for Impairment |
25,325
|
|
|
23,726
|
|
|
|
|
| Owner Occupied [Member] | Commercial real estate |
|
|
|
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
|
|
|
| Allowance Ending Balance |
1,022
|
904
|
|
671
|
663
|
659
|
|
673
|
| Allowance Individually Evaluated for Impairment |
3
|
|
|
15
|
|
|
|
|
| Allowance Collectively Evaluated for Impairment |
1,019
|
|
|
656
|
|
|
|
|
| Loans Ending Balance |
97,467
|
|
|
98,353
|
|
|
|
|
| Loans Individually Evaluated for Impairment |
4,246
|
|
|
3,503
|
|
|
|
|
| Loans Collectively Evaluated for Impairment |
93,221
|
|
|
94,850
|
|
|
|
|
| Non-Owner Occupied [Member] | Commercial real estate |
|
|
|
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
|
|
|
| Allowance Ending Balance |
1,373
|
1,202
|
|
831
|
774
|
747
|
|
673
|
| Allowance Collectively Evaluated for Impairment |
1,373
|
|
|
831
|
|
|
|
|
| Loans Ending Balance |
116,863
|
|
|
116,508
|
|
|
|
|
| Loans Individually Evaluated for Impairment |
1,691
|
|
|
2,304
|
|
|
|
|
| Loans Collectively Evaluated for Impairment |
115,172
|
|
|
114,204
|
|
|
|
|
| Multifamily [Member] | Commercial real estate |
|
|
|
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
|
|
|
| Allowance Ending Balance |
48
|
47
|
|
85
|
90
|
85
|
|
87
|
| Allowance Collectively Evaluated for Impairment |
48
|
|
|
85
|
|
|
|
|
| Loans Ending Balance |
10,155
|
|
|
13,332
|
|
|
|
|
| Loans Collectively Evaluated for Impairment |
10,155
|
|
|
13,332
|
|
|
|
|
| Farmland [Member] | Commercial real estate |
|
|
|
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
|
|
|
| Allowance Ending Balance |
2
|
|
|
2
|
2
|
2
|
|
2
|
| Allowance Collectively Evaluated for Impairment |
2
|
|
|
2
|
|
|
|
|
| Loans Ending Balance |
378
|
|
|
156
|
|
|
|
|
| Loans Collectively Evaluated for Impairment |
378
|
|
|
156
|
|
|
|
|
| Home equity lines [Member] | Consumer real estate |
|
|
|
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
|
|
|
| Allowance Ending Balance |
10
|
40
|
|
271
|
220
|
233
|
|
244
|
| Allowance Collectively Evaluated for Impairment |
10
|
|
|
271
|
|
|
|
|
| Loans Ending Balance |
19,307
|
|
|
21,509
|
|
|
|
|
| Loans Individually Evaluated for Impairment |
300
|
|
|
300
|
|
|
|
|
| Loans Collectively Evaluated for Impairment |
19,007
|
|
|
21,209
|
|
|
|
|
| First Deed of Trust [Member] | Consumer real estate |
|
|
|
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
|
|
|
| Allowance Ending Balance |
160
|
166
|
|
343
|
369
|
367
|
|
385
|
| Allowance Individually Evaluated for Impairment |
8
|
|
|
9
|
|
|
|
|
| Allowance Collectively Evaluated for Impairment |
152
|
|
|
334
|
|
|
|
|
| Loans Ending Balance |
55,070
|
|
|
55,856
|
|
|
|
|
| Loans Individually Evaluated for Impairment |
2,171
|
|
|
1,830
|
|
|
|
|
| Loans Collectively Evaluated for Impairment |
52,899
|
|
|
54,026
|
|
|
|
|
| Second Deed of Trust [Member] | Consumer real estate |
|
|
|
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
|
|
|
| Allowance Ending Balance |
157
|
75
|
|
64
|
68
|
60
|
|
51
|
| Allowance Individually Evaluated for Impairment |
77
|
|
|
|
|
|
|
|
| Allowance Collectively Evaluated for Impairment |
80
|
|
|
64
|
|
|
|
|
| Loans Ending Balance |
11,389
|
|
|
10,411
|
|
|
|
|
| Loans Individually Evaluated for Impairment |
817
|
|
|
752
|
|
|
|
|
| Loans Collectively Evaluated for Impairment |
10,572
|
|
|
9,659
|
|
|
|
|
| Commercial and industrial loans (except those secured by real estate) |
|
|
|
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
|
|
|
| Allowance Ending Balance |
348
|
|
|
572
|
372
|
385
|
|
|
| Allowance Individually Evaluated for Impairment |
16
|
|
|
135
|
|
|
|
|
| Allowance Collectively Evaluated for Impairment |
332
|
|
|
437
|
|
|
|
|
| Loans Ending Balance |
222,469
|
|
|
45,074
|
|
|
|
|
| Loans Individually Evaluated for Impairment |
317
|
|
|
346
|
|
|
|
|
| Loans Collectively Evaluated for Impairment |
222,152
|
|
|
44,728
|
|
|
|
|
| Commercial and industrial loans (except those secured by real estate) | Commercial and industrial loans |
|
|
|
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
|
|
|
| Allowance Ending Balance |
348
|
317
|
|
572
|
372
|
|
|
308
|
| Loans Ending Balance |
222,469
|
|
|
45,074
|
|
|
|
|
| Guaranteed student loans [Member] |
|
|
|
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
|
|
|
| Allowance Ending Balance |
97
|
|
|
108
|
|
|
|
|
| Allowance Collectively Evaluated for Impairment |
97
|
|
|
108
|
|
|
|
|
| Loans Ending Balance |
30,656
|
|
|
33,525
|
|
|
|
|
| Loans Collectively Evaluated for Impairment |
30,656
|
|
|
33,525
|
|
|
|
|
| Guaranteed student loans [Member] | Commercial and industrial loans |
|
|
|
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
|
|
|
| Allowance Ending Balance |
97
|
101
|
|
108
|
107
|
109
|
|
121
|
| Loans Ending Balance |
30,656
|
|
|
33,525
|
|
|
|
|
| Consumer And Other [Member] |
|
|
|
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
|
|
|
| Allowance Ending Balance |
311
|
|
|
54
|
|
|
|
|
| Allowance Collectively Evaluated for Impairment |
311
|
|
|
54
|
|
|
|
|
| Loans Ending Balance |
2,998
|
|
|
2,621
|
|
|
|
|
| Loans Collectively Evaluated for Impairment |
2,998
|
|
|
2,621
|
|
|
|
|
| Consumer And Other [Member] | Commercial and industrial loans |
|
|
|
|
|
|
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
|
|
|
|
|
|
| Allowance Ending Balance |
38
|
$ 40
|
|
30
|
$ 38
|
$ 34
|
|
$ 34
|
| Loans Ending Balance |
$ 2,998
|
|
|
$ 2,621
|
|
|
|
|