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INTANGIBLE ASSETS (Tables)
9 Months Ended
Sep. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Intangible Assets and Goodwill [Table Text Block]
The components of intangible assets consisted of the following (amounts in thousands):
Weighted Average Useful Lives
(in years)
September 30, 2020
September 30,
2020
December 31,
2019
Amortizable intangible assets:
     Customer relationships6.92$12,211 $12,629 
     Patents, trademarks and other9.459,884 11,598 
          Total at cost22,095 24,227 
     Less accumulated amortization(14,484)(14,461)
$7,611 $9,766 
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
The estimated aggregate amortization expense at September 30, 2020, for each of the years (or other periods) set forth below was as follows (amounts in thousands):
October 1 - December 31, 2020$485 
20211,305 
2022958 
2023958 
2024957 
Thereafter2,948 
 $7,611