Securities - Amortized Cost And Fair Value Of Securities By Contractual Maturity Of Available-For-Sale Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Due in one year or less, Amortized Cost	$ 0
Due after one year through five years, Amortized Cost	199
Due after five years through ten years, Amortized Cost	4,255
Due after ten years, Amortized Cost	38,227
Total bonds and obligations, Amortized Cost	42,681
Due in one year or less, Fair Value	0
Due after one year through five years, Fair Value	200
Due after five years through ten years, Fair Value	4,276
Due after ten years, Fair Value	37,996
Total bonds and obligations, Fair Value	42,472
Securities available for sale, amortized cost	100,470	$ 89,853
Securities available for sale, at fair value	99,797	88,611
U.S. Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available for sale, amortized cost	22,304	13,115
Securities available for sale, at fair value	22,244	13,087
U.S. Government-Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Securities available for sale, amortized cost	35,485	33,483
Securities available for sale, at fair value	$ 35,081	$ 32,854