ACCRUED EXPENSES (Tables)
 12 Months Ended
Dec. 31, 2017
Payables and Accruals [Abstract]  
Schedule of Accrued Liabilities [Table Text Block]
Accrued expenses consist of the following (in thousands):
 
 
 
December 31,
 
December 31,
 
 
 
2017
 
2016
 
Royalties
 
$
180
 
$
125
 
Reserve for charges against sales
 
 
40
 
 
334
 
Accrued purchase orders
 
 
—
 
 
158
 
Deferred gain
 
 
—
 
 
445
 
Others
 
 
472
 
 
724
 
Total
 
$
692
 
$
1,786