Derivative Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Derivative [Line Items]
Derivative, Notional Amount1	$ 7,408	$ 7,934
DerivativeAssetFairValueGrossAsset	96	241
Derivative Asset, Fair Value, Gross Liability	96	241
Derivative, Interest Rate Swap, Pay Fixed, Receive Variable [Member]
Derivative [Line Items]
Derivative, Notional Amount1	3,704	3,967
DerivativeAssetFairValueGrossAsset	0	0
Derivative Asset, Fair Value, Gross Liability	96	241
Derivative, Interest Rate Swap, Pay Variable, Receive Fixed [Member]
Derivative [Line Items]
Derivative, Notional Amount1	3,704	3,967
DerivativeAssetFairValueGrossAsset	96	241
Derivative Asset, Fair Value, Gross Liability	$ 0	$ 0