Securities - Schedule of Securities With Unrealized Losses (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Schedule Of Available For Sale Securities [Line Items]
Fair Value, Less Than 12 Months	$ 3,294	$ 6,557
Unrealized Losses, Less Than 12 Months	(1)	(49)
Fair Value, 12 Months or Longer	31,565	32,370
Unrealized Losses, 12 Months or Longer	(517)	(885)
Total Fair Value	34,859	38,927
Total Unrealized Losses	(518)	(934)
U.S. Government Sponsored Agency Securities
Schedule Of Available For Sale Securities [Line Items]
Fair Value, 12 Months or Longer	6,940	6,906
Unrealized Losses, 12 Months or Longer	(55)	(88)
Total Fair Value	6,940	6,906
Total Unrealized Losses	(55)	(88)
Mortgage-backed Securities, Residential
Schedule Of Available For Sale Securities [Line Items]
Fair Value, Less Than 12 Months		3,209
Unrealized Losses, Less Than 12 Months		(23)
Fair Value, 12 Months or Longer	10,474	10,920
Unrealized Losses, 12 Months or Longer	(169)	(313)
Total Fair Value	10,474	14,129
Total Unrealized Losses	(169)	(336)
Collateralized Mortgage Obligations
Schedule Of Available For Sale Securities [Line Items]
Fair Value, Less Than 12 Months	3,294	3,348
Unrealized Losses, Less Than 12 Months	(1)	(26)
Fair Value, 12 Months or Longer	14,151	14,544
Unrealized Losses, 12 Months or Longer	(293)	(484)
Total Fair Value	17,445	17,892
Total Unrealized Losses	$ (294)	$ (510)