Restricted Investment In Bank Stock (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Restricted Investment In Bank Stock [Abstract]
FHLB stock repurchased	$ 1,200	$ 679	$ 2,100	$ 1,300
Payments to Acquire Federal Home Loan Bank Stock	2,100	741	3,300	1,300
Restricted stock dividends received	$ 9	$ 3	$ 13	$ 6