Note 8 - Long-term Investments - Movement in Cost Method Investments (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017 USD ($)
Balance as of December 31, 2016	$ 1,340
Cost method investments, balance	1,348
ChinaNet Korea [Member]
Balance as of December 31, 2016	16
Exchange translation adjustment
Cost method investments, balance	16
Beijing Saturday [Member]
Balance as of December 31, 2016	27
Exchange translation adjustment
Cost method investments, balance	27
Chuangshi Meiwei [Member]
Balance as of December 31, 2016	1,297
Exchange translation adjustment	8
Cost method investments, balance	1,305
Guohua Shiji [Member]
Balance as of December 31, 2016	1,340
Exchange translation adjustment	8
Cost method investments, balance	$ 1,348