Revenue Recognition Disaggregation of 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]
Net loss on sale of investments	$ 0	$ (21,000)	$ (8,000)	$ (21,000)
Revenue from Contract with Customer, Excluding Assessed Tax	879,000	663,000	1,579,000	1,309,000
BOLI change in cash surrender value (1)
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	189,000	224,000	458,000	473,000
Wealth management revenue
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	261,000	156,000	457,000	255,000
Deposit related fees
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	88,000	71,000	157,000	134,000
Debit card and ATM fees
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	117,000	104,000	219,000	202,000
Loan related fees
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	119,000	104,000	166,000	190,000
Loan interest swap fees
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	90,000	22,000	106,000	70,000
Other
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 15,000	$ 3,000	$ 24,000	$ 6,000