Note 17 - Payable for Purchasing of Software Technology (Details Textual) ¥ in Thousands, $ in Thousands	Jun. 30, 2018 USD ($)		Dec. 31, 2017 USD ($)	Dec. 31, 2017 CNY (¥)	Dec. 31, 2016 USD ($)	Dec. 31, 2016 CNY (¥)
Payable for Purchasing of Software Technology		[1]	$ 436	¥ 2,850	$ 400	¥ 2,850

[1] All of the VIEs' assets can be used to settle obligations of their primary beneficiary. Liabilities recognized as a result of consolidating these VIEs do not represent additional claims on the Company's general assets (Note 2).