Credit Quality Indicators for RRE and Consumer Loans (Details) $ in Thousands	Jun. 30, 2020 USD ($)
Residential Real Estate
Credit Quality Indicators By Origination
Term loans originated in 2020 (year-to-date)	$ 81,889
Term loans originated in 2019	256,534
Term loans originated in 2018	156,524
Term loans originated in 2017	107,758
Term loans originated in 2016	73,516
Term loans originated in 2015 and prior	224,321
Revolving loans	2,656
Loans receivable	903,198
Residential Real Estate | Performing
Credit Quality Indicators By Origination
Term loans originated in 2020 (year-to-date)	81,789
Term loans originated in 2019	256,352
Term loans originated in 2018	156,280
Term loans originated in 2017	107,652
Term loans originated in 2016	72,483
Term loans originated in 2015 and prior	221,306
Revolving loans	2,656
Loans receivable	898,518
Residential Real Estate | 30-89 Days Past Due
Credit Quality Indicators By Origination
Term loans originated in 2020 (year-to-date)	100
Term loans originated in 2019	0
Term loans originated in 2018	0
Term loans originated in 2017	0
Term loans originated in 2016	0
Term loans originated in 2015 and prior	131
Revolving loans	0
Loans receivable	231
Residential Real Estate | Non-Accrual and 90 Days or More Past Due
Credit Quality Indicators By Origination
Term loans originated in 2020 (year-to-date)	0
Term loans originated in 2019	182
Term loans originated in 2018	244
Term loans originated in 2017	106
Term loans originated in 2016	1,033
Term loans originated in 2015 and prior	2,884
Revolving loans	0
Loans receivable	4,449
Home Equity
Credit Quality Indicators By Origination
Term loans originated in 2020 (year-to-date)	0
Term loans originated in 2019	2,039
Term loans originated in 2018	2,202
Term loans originated in 2017	2,015
Term loans originated in 2016	1,571
Term loans originated in 2015 and prior	18,947
Revolving loans	627,618
Loans receivable	654,392
Home Equity | Performing
Credit Quality Indicators By Origination
Term loans originated in 2020 (year-to-date)	0
Term loans originated in 2019	2,001
Term loans originated in 2018	2,202
Term loans originated in 2017	2,015
Term loans originated in 2016	1,571
Term loans originated in 2015 and prior	17,864
Revolving loans	621,926
Loans receivable	647,579
Home Equity | 30-89 Days Past Due
Credit Quality Indicators By Origination
Term loans originated in 2020 (year-to-date)	0
Term loans originated in 2019	0
Term loans originated in 2018	0
Term loans originated in 2017	0
Term loans originated in 2016	0
Term loans originated in 2015 and prior	381
Revolving loans	3,248
Loans receivable	3,629
Home Equity | Non-Accrual and 90 Days or More Past Due
Credit Quality Indicators By Origination
Term loans originated in 2020 (year-to-date)	0
Term loans originated in 2019	38
Term loans originated in 2018	0
Term loans originated in 2017	0
Term loans originated in 2016	0
Term loans originated in 2015 and prior	702
Revolving loans	2,444
Loans receivable	3,184
Other Consumer
Credit Quality Indicators By Origination
Term loans originated in 2020 (year-to-date)	62,392
Term loans originated in 2019	89,495
Term loans originated in 2018	59,295
Term loans originated in 2017	26,418
Term loans originated in 2016	14,793
Term loans originated in 2015 and prior	26,035
Revolving loans	22,419
Loans receivable	300,847
Other Consumer | Performing
Credit Quality Indicators By Origination
Term loans originated in 2020 (year-to-date)	62,371
Term loans originated in 2019	89,300
Term loans originated in 2018	59,099
Term loans originated in 2017	25,848
Term loans originated in 2016	14,713
Term loans originated in 2015 and prior	24,864
Revolving loans	22,379
Loans receivable	298,574
Other Consumer | 30-89 Days Past Due
Credit Quality Indicators By Origination
Term loans originated in 2020 (year-to-date)	21
Term loans originated in 2019	154
Term loans originated in 2018	140
Term loans originated in 2017	511
Term loans originated in 2016	3
Term loans originated in 2015 and prior	839
Revolving loans	34
Loans receivable	1,702
Other Consumer | Non-Accrual and 90 Days or More Past Due
Credit Quality Indicators By Origination
Term loans originated in 2020 (year-to-date)	0
Term loans originated in 2019	41
Term loans originated in 2018	56
Term loans originated in 2017	59
Term loans originated in 2016	77
Term loans originated in 2015 and prior	332
Revolving loans	6
Loans receivable	$ 571