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SEGMENT INFORMATION (Details 1) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net Sales $ 80,270 $ 76,906 $ 57,453 $ 69,120 $ 82,097 $ 79,069 $ 56,867 $ 78,900 $ 283,749 $ 296,933 $ 320,617
Long-Lived Assets 80,036       82,243       80,036 82,243 82,357
United States [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net Sales                 219,685 231,462 252,459
Long-Lived Assets 72,328       74,548       72,328 74,548 74,658
Canada [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net Sales                 18,451 17,958 21,031
Europe [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net Sales                 7,433 8,014 7,291
Australia [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net Sales                 28,082 28,390 27,224
Asia [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net Sales                 6,812 7,702 9,050
South Africa [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Net Sales                 3,286 3,407 3,562
Other [Member]                      
Revenues from External Customers and Long-Lived Assets [Line Items]                      
Long-Lived Assets $ 7,708       $ 7,695       $ 7,708 $ 7,695 $ 7,699