Revenue Recognition - Disaggregation of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Gains on sales of loans	$ 710	$ 428	$ 1,125	$ 799
Other Income:
Gains on customer swap transactions	767	656	3,610	855
Title insurance income	84	29	80	119
Other income	73	67	170	128
Total	924	752	3,860	1,102
Revenue not from contracts with customers	755	730	1,276	1,753
Total Noninterest Income	5,481	6,389	13,492	12,112
Products and services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	4,708	5,641	12,179	10,322
Products and services transferred over time
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	18	18	37	37
Deposit Related Fees and Charges
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	1,875	2,755	4,375	5,328
Debit card interchange income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	1,215	1,412	2,438	2,630
Overdraft charges
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	449	981	1,402	1,977
ATM service charges
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	62	216	229	400
Demand deposit fees and charges
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	131	122	265	265
Savings service charges
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	18	24	41	56
Commissions and Fees:
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	1,217	1,724	2,856	3,130
Loan fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	213	531	553	879
Wire transfer charges
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	341	305	649	572
Investment services income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	316	427	839	779
Merchant fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	166	200	414	384
Commissions from sales of checks
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	60	111	143	214
Safe deposit income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	85	90	171	181
Other income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer, excluding assessed tax	$ 36	$ 60	$ 87	$ 121