Note 18 - Restricted Net Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Dec. 31, 2016
Amount of Restricted Net Assets for Consolidated and Unconsolidated Subsidiaries	$ 7,800	$ 7,800
Withholding Tax Rate Pursuant To EIT Law	10.00%
Preferential Withholding Tax Rate	5.00%
Retained Earnings (Accumulated Deficit)	$ (11,449)	(10,362)
Statutory Accounting Practices, Retained Earnings Not Available for Dividends	2,607	2,607
PRC Subsidiary And VIE's [Member]
Retained Earnings (Accumulated Deficit)	16,700	17,600
Statutory Accounting Practices, Retained Earnings Not Available for Dividends	$ 2,500	$ 2,500
WFOE [Member]
Minimum Percentage Of Annual After-tax Profit For General Reserve	10.00%
Minimum Required Reserve As Percent Of Registered Capital	50.00%
Domestic Enterprise [Member]
Minimum Percentage Of Annual After-tax Profit For General Reserve	10.00%
Minimum Required Reserve As Percent Of Registered Capital	50.00%

Minimum percentage of annual after-tax profit required to be appropriated as general reserve.

No definition available.

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- Definition

Minimum aggregate compulsory appropriation of general reserve, measured by percentage of registered capital.

+ References

No definition available.

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- Definition

Preferential withholding tax rate in PRC.

+ References

No definition available.

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- Definition

Withholding tax rate pursuant to PRC Enterprise Income Tax law.

+ References

No definition available.

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- Definition

Amount of restricted net assets of consolidated and unconsolidated subsidiaries as of the end of the most recently completed fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e)(3)(ii))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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- Definition

The cumulative amount of the reporting entity's undistributed earnings or deficit.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(23)(a)(4))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(30)(a)(3))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The amount of retained earnings as of the balance sheet date that cannot be distributed to stockholders pursuant to statutory rules and regulations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 505
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6486098&loc=d3e24708-158529

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