Commitments and contingencies (Tables)

12 Months Ended

Dec. 31, 2019

Commitments and contingencies

Schedule of future minimum payments under non-cancelable agreements for operating leases

		Less than One	One to Three	Over Three
	Total	Year	Years	Years
	RMB	RMB	RMB	RMB
Operating lease commitments	11,877	3,414	8,433	30

Schedule of purchase commitments

		Less than One	Over One
	Total	Year	Year
	RMB	RMB	RMB
Purchase commitments	72,739	72,739	—