XML 61 R38.htm IDEA: XBRL DOCUMENT v3.8.0.1
INVENTORIES (Tables)
12 Months Ended
Dec. 31, 2017
INVENTORIES  
Schedule of inventories

 

 

As of December 31,

 

 

 

2016

 

2017

 

 

 

 

 

 

 

Educational merchandise

 

3,043

 

3,549

 

 

 

 

 

 

 

 

 

3,043

 

3,549