Fair Value - Assets Measured at Fair Value on Non-recurring Basis (Details) - Non-Recurring Basis - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Fair Value
Losses recognized on loans	$ 0	$ 0
Impaired loans carried at fair value of collateral \| Significant Unobservable Inputs (Level 3)
Fair Value
Impaired loans carried at fair value of collateral	$ 1,683		$ 1,744

This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

No definition available.

Name:	us-gaap_AssetsFairValueDisclosureNonrecurring
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant