8.GOODWILL

The Group has one reporting unit; goodwill is carried by Tangning Garden resulting from the acquisition. The changes in carrying amount of goodwill for the years ended December 31, 2016 and 2017 were as follows.

	As of December 31,
	2016		2017

Costs:
Beginning balance	430		401
Acquisition of Tangning Garden	—		—
Foreign Currency Adjustment	(29	)	27

Ending balance	401		428
Accumulated goodwill impairment loss	—		—

Goodwill, net	401		428

Goodwill is tested for impairment annually or more frequently if events or changes in circumstances indicate that it might be impaired. The Group did not record any impairment of goodwill for the years ended December 31, 2015, 2016 and 2017.