Derivatives - Schedule Of Fair Value of Derivatives (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Derivatives, Fair Value [Line Items]
Fair Value	$ 1,232	$ 1,647
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional/ Contract Amount	38,500	38,500
Fair Value	1,232	1,647
Derivative Effective Date March 15, 2016 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional/ Contract Amount	12,500	12,500
Fair Value	528	629
Derivative Effective Date December 15, 2016 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional/ Contract Amount	5,000	5,000
Fair Value	124	163
Derivative Effective Date June 15, 2017 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional/ Contract Amount	6,000	6,000
Fair Value	126	201
Derivative Effective Date December 15, 2017 Contract 1 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional/ Contract Amount	10,000	10,000
Fair Value	315	448
Derivative Effective Date December 15, 2017 Contract 2 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Notional/ Contract Amount	5,000	5,000
Fair Value	$ 139	$ 206