Securities - Schedule of Required Fair Value Disclosures for Equity Securities (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Equity Securities, FV-NI, Realized Gain (Loss) [Roll Forward]
Fair value at beginning of period	$ 1,839	$ 1,793	$ 1,793
Unrealized Gains	193	31	247
Unrealized Losses	0	81	201
Fair value at end of period	2,032	1,743	1,839
CRA Mutual Fund
Equity Securities, FV-NI, Realized Gain (Loss) [Roll Forward]
Fair value at beginning of period	1,012	1,044	1,044
Unrealized Gains	38	0	0
Unrealized Losses	0	31	32
Fair value at end of period	1,050	1,013	1,012
Stock in other banks
Equity Securities, FV-NI, Realized Gain (Loss) [Roll Forward]
Fair value at beginning of period	827	749	749
Unrealized Gains	155	31	247
Unrealized Losses	0	50	169
Fair value at end of period	$ 982	$ 730	$ 827