XML 46 R78.htm IDEA: XBRL DOCUMENT v3.20.1
SHARE-BASED COMPENSATION (Details) - shares
1 Months Ended 12 Months Ended
Nov. 30, 2015
Dec. 31, 2019
Dec. 31, 2011
Apr. 30, 2009
SHARE-BASED COMPENSATION        
Expiration period   6 years    
Vesting period   4 years    
2009 Option Plan        
SHARE-BASED COMPENSATION        
Common shares reserved for issuance under share plan     10,000,000 5,000,000
2015 Plan        
SHARE-BASED COMPENSATION        
Common shares reserved for issuance under share plan 10,000,000      
Expiration period 10 years      
Automatic increase allowed (as a percentage) 5.00%