Other Assets (Schedule of Other Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Other Assets [Abstract]
Restricted securities	$ 6,099	$ 3,735
Accrued interest receivable	3,246	3,502
Deferred income taxes, net	2,460	1,935
Prepaid expenses	1,580	1,475
Cash surrender value of life insurance	3,650	3,637
Other assets	5,502	3,636
Total	$ 22,537	$ 17,920