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SUBSEQUENT EVENTS (Narrative) (Details)
1 Months Ended 12 Months Ended
Feb. 28, 2019
Dec. 31, 2018
Dec. 20, 2017
Subsequent Event [Line Items]      
Business Acquisition, Percentage of Voting Interests Acquired     100.00%
Business Combination Consideration To be Transferred Among Least   1) 20% of the total assets of Zhejiang Haiyang as of December 31, 2018 plus 20% of the audited net profit of Zhejiang Haiyang from January 1, 2019 to the completion day of the transaction, or 2) RMB170,000.  
Zhejiang Haiyang [Member] | Subsequent Events [Member]      
Subsequent Event [Line Items]      
Business Acquisition, Percentage of Voting Interests Acquired 20.00%    
Business Combination, Contingent Consideration Arrangements, Basis for Amount 1) The evaluated total assets based on December 31, 2018*20% plus the audited net profit from January 1, 2019 to the completion day of the transaction*20%; 2) RMB170,000.