Quarterly report pursuant to Section 13 or 15(d)

Accumulated Other Comprehensive Income (Reclassification Out Of Accumulated Other Comprehensive Income) (Details)

v3.8.0.1
Accumulated Other Comprehensive Income (Reclassification Out Of Accumulated Other Comprehensive Income) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Sales $ 53,267 $ 41,556
Less: Income tax expense (42) 210
Total reclassificaitons from AOCI (135)  
Unrealized Gains (Losses) on Cash Flow Hedges [Member]    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Total reclassificaitons from AOCI (266)  
Foreign Currency Translation Adjustments [Member]    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Total reclassificaitons from AOCI 131  
Reclassification Out Of Accumulated Other Comprehensive Income [Member]    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Total reclassificaitons from AOCI (135)  
Reclassification Out Of Accumulated Other Comprehensive Income [Member] | Unrealized Gains (Losses) on Cash Flow Hedges [Member]    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Sales (325) $ 296
Less: Income tax expense (59)  
Total reclassificaitons from AOCI (266)  
Reclassification Out Of Accumulated Other Comprehensive Income [Member] | Foreign Currency Translation Adjustments [Member]    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Other, net $ 131