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INVENTORIES (Tables)
6 Months Ended
Jun. 30, 2018
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current [Table Text Block]
Inventories consist of:
 
 
 
June 30, 2018
 
 
December 31, 2017
 
Raw material
 
$
1,964,000
 
 
$
1,871,000
 
Work in process
 
 
2,225,000
 
 
 
1,556,000
 
Finished goods
 
 
16,781,000
 
 
 
16,230,000
 
 
 
$
20,970,000
 
 
$
19,657,000