Loans and allowance for credit losses - Impaired Loans Average Recorded Investment and Interest Income (Details) - USD ($)
$ in Thousands |
12 Months Ended |
Dec. 31, 2019 |
Dec. 31, 2018 |
| Average recorded investment |
|
|
| With a related allowance recorded |
$ 10,568
|
$ 4,122
|
| With no related allowance recorded |
8,197
|
7,423
|
| Total impaired loans |
18,765
|
11,545
|
| Interest income recognized (cash basis) |
|
|
| With a related allowance recorded |
624
|
175
|
| With no related allowance recorded |
575
|
418
|
| Total impaired loans |
1,199
|
593
|
| Commercial and industrial |
|
|
| Average recorded investment |
|
|
| With a related allowance recorded |
3,349
|
335
|
| With no related allowance recorded |
2,088
|
1,377
|
| Interest income recognized (cash basis) |
|
|
| With a related allowance recorded |
474
|
121
|
| With no related allowance recorded |
201
|
70
|
| Construction |
|
|
| Average recorded investment |
|
|
| With no related allowance recorded |
1,641
|
1,255
|
| Interest income recognized (cash basis) |
|
|
| With no related allowance recorded |
167
|
74
|
| Residential real estate | 1-to-4 family mortgage |
|
|
| Average recorded investment |
|
|
| With a related allowance recorded |
205
|
170
|
| With no related allowance recorded |
963
|
955
|
| Interest income recognized (cash basis) |
|
|
| With a related allowance recorded |
13
|
9
|
| With no related allowance recorded |
68
|
74
|
| Residential real estate | Residential line of credit |
|
|
| Average recorded investment |
|
|
| With no related allowance recorded |
252
|
123
|
| Interest income recognized (cash basis) |
|
|
| With no related allowance recorded |
1
|
15
|
| Commercial real estate | Owner occupied |
|
|
| Average recorded investment |
|
|
| With a related allowance recorded |
658
|
702
|
| With no related allowance recorded |
2,143
|
1,862
|
| Interest income recognized (cash basis) |
|
|
| With a related allowance recorded |
27
|
43
|
| With no related allowance recorded |
133
|
148
|
| Commercial real estate | Non-owner occupied |
|
|
| Average recorded investment |
|
|
| With a related allowance recorded |
6,196
|
2,915
|
| With no related allowance recorded |
1,049
|
1,313
|
| Interest income recognized (cash basis) |
|
|
| With a related allowance recorded |
109
|
2
|
| With no related allowance recorded |
0
|
7
|
| Consumer and other |
|
|
| Average recorded investment |
|
|
| With a related allowance recorded |
0
|
0
|
| With no related allowance recorded |
61
|
49
|
| Interest income recognized (cash basis) |
|
|
| With a related allowance recorded |
0
|
0
|
| With no related allowance recorded |
$ 5
|
$ 4
|