Revenue (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Other operating income (in-scope of Topic 606)	$ 1,608,000	$ 1,519,000	$ 3,036,000	$ 2,861,000
Other operating income (out-of-scope of Topic 606)	7,961,000	6,795,000	14,066,000	12,915,000
Total Other Operating Income	9,569,000	8,314,000	17,102,000	15,776,000
Bankcard fees
Disaggregation of Revenue [Line Items]
Other operating income (in-scope of Topic 606)	744,000	707,000	1,394,000	1,332,000
Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
Other operating income (in-scope of Topic 606)	413,000	376,000	826,000	730,000
Other
Disaggregation of Revenue [Line Items]
Other operating income (in-scope of Topic 606)	451,000	436,000	816,000	799,000
Gains On Sale Of Other Real Estate Owned
Disaggregation of Revenue [Line Items]
Other operating income (in-scope of Topic 606)	$ 0	$ 49,000	$ 316,000	$ 49,000