Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Unrealized Gains and Losses on Available-for-Sale Securities, Beginning balance	$ (75)	$ 59	$ (85)	$ (4)
Unrealized Gains and Losses on Available-for-Sale Securities, Other comprehensive income before reclassifications	9	16	19	79
Unrealized Gains and Losses on Available-for-Sale Securities, Ending balance	(66)	75	(66)	75
Unrealized Loss on Securities Transferred to Held-to-Maturity, Beginning balance		(95)		(208)
Unrealized Loss on Securities Transferred to Held-to-Maturity, Other comprehensive income before reclassifications		50		163
Unrealized Loss on Securities Transferred to Held-to-Maturity, Ending balance		(45)		(45)
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance	(75)	(36)	(85)	(212)
Other comprehensive income before reclassifications	9	66	19	242
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	$ (66)	$ 30	$ (66)	$ 30