Fair Value Measurements (Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets	$ 16	$ 16
Interest rate swap	205	334
Total Liabilities	205	334
Non domestic bank certificates of deposit [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Term Deposits	16	16
Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets	16	16
Interest rate swap	0	0
Total Liabilities	0	0
Fair Value, Inputs, Level 1 [Member] | Non domestic bank certificates of deposit [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Term Deposits	16	16
Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets	0	0
Interest rate swap	205	334
Total Liabilities	205	334
Fair Value, Inputs, Level 2 [Member] | Non domestic bank certificates of deposit [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Term Deposits	0	0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets	0	0
Interest rate swap	0	0
Total Liabilities	0	0
Fair Value, Inputs, Level 3 [Member] | Non domestic bank certificates of deposit [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Term Deposits	$ 0	$ 0