Goodwill and Other Intangible Assets - Acquired intangible assets subject to amortization (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Acquired Finite-Lived Intangible Assets [Line Items]
Total	$ 1,961
Core deposit [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,590	$ 3,590
Accumulated Amortization	(1,629)	(1,472)
Total	$ 1,961	$ 2,118