Goodwill and Other Intangible Assets Narrative Data (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	May 27, 2011
Finite-Lived Intangible Assets [Line Items]
Goodwill at acquisition						$ 2,200
Core deposit intangible at acquisition						$ 1,700
Net core deposit intangible	$ 284		$ 284		$ 412
Amortization of core deposit intangible	$ 43	$ 43	$ 129	$ 129