Note 9 - Long-term Investments (Details) - Movement of Investment in and Advance to Equity Investment Affiliates (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Schedule of Equity Method Investments [Line Items]
Balance	$ 891,000
Share of income in equity investment affiliates	1,000	(15,000)
Investment in equity investment affiliates	20,000
Exchange translation adjustment	(4,000)
Balance	908,000
ChinaNet Korea [Member]
Schedule of Equity Method Investments [Line Items]
Investment in equity investment affiliates	20,000
Balance	20,000
Shenzhen Mingshan [Member]
Schedule of Equity Method Investments [Line Items]
Balance	461,000
Share of income in equity investment affiliates	1,000	(2,000)
Exchange translation adjustment	(2,000)
Balance	460,000
Zhao Shang Ke Hubei [Member]
Schedule of Equity Method Investments [Line Items]
Balance	430,000
Share of income in equity investment affiliates		(13,000)
Exchange translation adjustment	(2,000)
Balance	$ 428,000