Income Taxes -Reconciliation of Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Provision at statutory rate	$ 1,836	$ 2,786
Tax-exempt income	(79)	(79)
Rate change	0	309
Other	(51)	52
Total tax expense	$ 1,706	$ 3,068
Federal Tax Rate	21.00%	35.00%
Tax exempt rate	(0.90%)	(1.00%)
Rate change	0.00%	3.80%
Other	(0.60%)	0.60%
Effective tax rate	19.50%	38.40%