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LOSS PER SHARE (Details) - ¥ / shares
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Disclosure Of LOSS PER SHARE [Abstract]      
Loss attributable to holders of ordinary shares (418,674,000) (88,026,000) (321,802,000)
Weighted average number of ordinary shares outstanding used in computing basic and diluted (loss)/earnings per share 4,493,036 3,339,487 2,761,998
Loss per share - basic ¥ (93.18) ¥ (26.36) ¥ (116.51)
Loss per share - diluted ¥ (93.18) ¥ (26.36) ¥ (116.51)