SEGMENT INFORMATION - Geographic Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	$ 304,011	$ 298,375
Long-Lived Assets	98,575	76,508
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	245,073	234,782
Long-Lived Assets	81,603	70,018
Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	22,285	21,263
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	6,223	7,849
Australia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	22,459	26,038
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	5,085	5,442
South Africa [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	2,886	3,001
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	$ 16,972	$ 6,490