total amount and scheduled maturities of time certificates of deposit in denominations of $250 thousand or more (Details) - Core Deposits [Member] - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Acquired Finite-Lived Intangible Assets [Line Items]
Within three months	$ 4,045	$ 4,603
After three through six months	17,218	3,799
After six through twelve months	4,851	6,628
Over one year	12,581	6,750
Total	$ 38,695	$ 21,780