Other Assets (Schedule of Other Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Other Assets [Abstract]
Restricted securities	$ 8,110	$ 3,735
Accrued interest receivable	3,601	3,502
Deferred income taxes, net	2,440	1,935
Prepaid expenses	1,546	1,475
Cash surrender value of life insurance	3,676	3,637
Other assets	4,327	3,636
Total	$ 23,700	$ 17,920