CONVERTIBLE REDEEMABLE PREFERENCE SHARES (Tables)

12 Months Ended

Dec. 31, 2017

CONVERTIBLE REDEEMABLE PREFERRED SHARES

Schedule of movement of the convertible redeemable preferred shares

	Series A		Series B
	Shares		Shares		Total
Balance as of January 1,2015	2,435		27,167		29,602
Accretion to redemption value of preferred shares	269		2,115		2,384
Repurchase of convertible redeemable preferred shares	(2,704	)	(29,282	)	(31,986	)
Balance as of December 31, 2015	—		—		—

Schedule of summary of the authorized, issued and outstanding preferred shares

	Shares	Shares issued	Carrying	Liquidation
Series	authorized	and outstanding	value	value
Series A	7,500,000	929,412	2,435	1,150
Series B	8,000,000	6,434,389	27,167	30,000