Note 8 - Long-term Investments (Details Textual) $ in Thousands, ¥ in Millions	12 Months Ended
Dec. 31, 2018 USD ($)	Dec. 31, 2018 CNY (¥)	Dec. 31, 2019 USD ($)
Shenzhen Mingshan [Member]
Equity Method Investment, Ownership Percentage	23.18%		23.18%
Zhao Shang Ke Hubei [Member]
Equity Method Investment, Ownership Percentage	25.50%		25.50%
Equity Method Investments	$ 0		$ 0
ChinaNet Chuang Tou [Member]
Equity Securities without Readily Determinable Fair Value, Percent	19.00%		19.00%
Equity Securities without Readily Determinable Fair Value, Amount			$ 0
Investments, Cash Returned	$ 450	¥ 3
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount	$ 450
ChinaNet Korea [Member]
Equity Securities without Readily Determinable Fair Value, Percent	15.00%		15.00%
Equity Securities without Readily Determinable Fair Value, Amount			$ 0
Beijing Saturday [Member]
Equity Securities without Readily Determinable Fair Value, Percent	10.00%		10.00%
Equity Securities without Readily Determinable Fair Value, Amount			$ 0
Local Chain Xi’an [Member]
Equity Securities without Readily Determinable Fair Value, Percent	4.90%		4.90%
Equity Securities without Readily Determinable Fair Value, Amount			$ 40
Guohua Shiji [Member]
Equity Securities without Readily Determinable Fair Value, Percent	19.00%		19.00%
Equity Securities without Readily Determinable Fair Value, Amount			$ 0

Percentage of investment in equity security without readily determinable fair value.

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- Definition

Represents the amount of cash returned related to investments.

+ References

No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Amount of investment in equity security without readily determinable fair value.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
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- Definition

Amount of impairment loss on investment in equity security without readily determinable fair value.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
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