Bank Premises and Equipment Held for Sale (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Long Lived Assets Held-for-sale [Line Items]
Assets Held-for-sale, Not Part of Disposal Group	$ 1,589	$ 1,252
Prince Street Branch Building [Member]
Long Lived Assets Held-for-sale [Line Items]
Assets Held-for-sale, Not Part of Disposal Group	552
Cumberland Street Branch Building [Member]
Long Lived Assets Held-for-sale [Line Items]
Assets Held-for-sale, Not Part of Disposal Group	337
Land Held For Possible Future Branch Site [Member]
Long Lived Assets Held-for-sale [Line Items]
Assets Held-for-sale, Not Part of Disposal Group	$ 700