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SHARE-BASED COMPENSATION (Narrative) (Details)
 6 Months Ended
Jun. 30, 2017
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options granted 102,966 [1]
RSUs granted 298,694 [2]
Options and RSUs outstanding at end of period 2,859,890
Director [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options granted 60,484
Officers and Directors [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
RSUs granted 261,344
Options and RSUs outstanding at end of period 2,561,721
[1] Includes 60,484 options granted to a director
[2] Includes 261,344 RSUs granted to certain officers and directors.