Deposits - Schedule of Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Weighted average rate
Non-interest bearing deposits	0.00%	0.00%
Interest bearing demand deposits	0.44%	0.21%
Time deposits	1.58%	1.44%
Weighted average weight	0.65%	0.50%
Amount
Non-interest bearing deposits	$ 126,263	$ 123,717
Interest bearing demand deposits	357,693	304,265
Time deposits	170,687	156,958
Total deposits	$ 654,643	$ 584,940
Percent
Non-interest bearing deposits	19.30%	21.20%
Interest bearing demand deposits	54.60%	52.00%
Time deposits	26.10%	26.80%
Total	100.00%	100.00%