Derivatives and Hedging Activities (Tables)

12 Months Ended

Dec. 31, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]

The following table presents the fair values of our derivative instrument included within the Consolidated Balance Sheet as of December 31, 2017 (in thousands):

	Derivatives
	Consolidated Balance Sheet Location	December 31, 2017
Derivatives designated as cash flow hedging instruments
Foreign exchange forward contract:	Accrued liabilities	$	187
	Other long-term liabilities	402
Total derivatives designated as cash flow hedging instruments		$	589

The following table presents the amounts affecting the Consolidated Statements of Operations for the year ended December 31, 2017 (in thousands):

	Line Item in the Consolidated Statements of Operations	Year Ended December 31, 2017
Derivatives designated as cash flow hedging instruments
Foreign exchange forward contracts	Cost of goods sold	$	885

Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block]

We recognized the following gains on our foreign exchange contract designated as a cash flow hedge (in thousands):

	Amount of Gain Recognized in Other Comprehensive Income on Derivatives		Amount of Gain Reclassified From Accumulated Other Comprehensive Income into Income
	Year Ended December 31, 2017		Location of Gain Reclassified From Accumulated Other Comprehensive Income into Income	Year Ended December 31, 2017
Derivatives designated as cash flow hedges:
Foreign exchange forward contract	$	296	Cost of goods sold	$	885
Total derivatives designated as cash flow hedging instruments	$	296		$	885