Disclosures About Fair Value of Assets and Liabilities - Reconciliation of Beginning and Ending Balances of Recurring Fair Value Measurements using Significant Unobservable Level 3 Inputs (Details) - Fair Value, Measurements, Recurring - Available for Sale Securities - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Available for Sale Securities
Balance at beginning of the period	$ 5,564	$ 6,028	$ 5,932	$ 6,646
Total realized and unrealized gains and losses:
Included in other comprehensive income	(45)	24	52	165
Principal payments	(77)	(156)	(542)	(915)
Ending balance	$ 5,442	$ 5,896	$ 5,442	$ 5,896