Allowance for Credit Losses - Modified loans performance (Details) - Consumer $ in Thousands	Jun. 30, 2023 USD ($)
30-59 Days Past Due
Allowance for Credit Losses
Amount	$ 2
60-89 Days Past Due
Allowance for Credit Losses
Amount	19
Greater Than 89 Days Past Due
Allowance for Credit Losses
Amount	7
Total Past Due
Allowance for Credit Losses
Amount	28
Motor Vehicle | 30-59 Days Past Due
Allowance for Credit Losses
Amount	2
Motor Vehicle | 60-89 Days Past Due
Allowance for Credit Losses
Amount	19
Motor Vehicle | Greater Than 89 Days Past Due
Allowance for Credit Losses
Amount	7
Motor Vehicle | Total Past Due
Allowance for Credit Losses
Amount	$ 28