Other Noninterest Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Other Noninterest Expenses.
Loan related expenses	$ 170	$ 133
Other ATM expenses	124	102
Directors fees and expenses	129	144
Executive and audit committee expenses	62	69
Postage and delivery	107	100
Stationery, printing and supplies	63	60
Office supplies expenses	97	93
Credit report fees	58	55
Delivery and courier charges	55	56
Dues and subscriptions fees	82	63
Examination and assessment fees	46	46
Federal Reserve and correspondent bank services	53	49
Liability insurance	101	68
Other	282	291
Total Other Noninterest Expense	$ 1,429	$ 1,329