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SEGMENT INFORMATION (Details 1) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net Sales $ 298,375 $ 283,749
Long-Lived Assets 76,508 80,036
United States [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net Sales 234,782 219,685
Long-Lived Assets 70,018 72,328
Canada [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net Sales 21,263 18,451
Europe [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net Sales 7,849 7,433
Australia [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net Sales 26,038 28,082
Asia [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net Sales 5,442 6,812
South Africa [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Net Sales 3,001 3,286
Other [Member]    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Long-Lived Assets $ 6,490 $ 7,708