Annual report pursuant to Section 13 and 15(d)

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

v3.20.1
Accumulated Other Comprehensive Income (Reclassification Out Of Accumulated Other Comprehensive Income) (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]                      
Sales $ 61,022 $ 60,203 $ 46,994 $ 61,218 $ 57,307 $ 55,686 $ 45,881 $ 53,267 $ 229,437 $ 212,141 $ 170,687
Less: Income tax expense                 (8,991) (828) $ (5,087)
Total reclassificaitons from AOCI                 (908) 373  
Unrealized Gains (Losses) on Cash Flow Hedges [Member]                      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]                      
Total reclassificaitons from AOCI                 (908) 572  
Foreign Currency Translation Adjustments [Member]                      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]                      
Total reclassificaitons from AOCI                   (199)  
Reclassification Out Of Accumulated Other Comprehensive Income [Member]                      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]                      
Sales                 1,017 256  
Total reclassificaitons from AOCI                 908 373  
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                 1,017 256  
Less: Income tax expense                 109 (316)  
Total reclassificaitons from AOCI                 $ 908 572  
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                   $ (199)