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Condensed consolidated statements of changes in shareholders equity - USD ($)	Common stock issued [Member]	Donated shares [Member]	Additional paid-in capital [Member]	Statutory reserves [Member]	Accumulated deficit [Member]	Accumulated other comprehensive loss [Member]	Treasury shares [Member]	Total
Beginning Balance at Dec. 31, 2015	$ 17,290	$ 14,101,689	$ 138,405,110	$ 1,230,511	$ (129,285,454)	$ (979,048)	$ (4,066,610)	$ 19,423,488
Beginning Balance (Shares) at Dec. 31, 2015	17,289,699						(144,206)
Net loss					(4,571,799)			(4,571,799)
Share-based compensation for employee and director stock awards			698,100					698,100
Common stock issued to employees and directors for stock awards	$ 142		(142)
Common stock issued to employees and directors for stock awards (Shares)	142,501
Foreign currency translation adjustment						(434,799)		(434,799)
Ending Balance at Jun. 30, 2016	$ 17,432	14,101,689	139,103,068	1,230,511	(133,857,253)	(1,413,847)	$ (4,066,610)	15,114,990
Ending Balance (Shares) at Jun. 30, 2016	17,432,200						(144,206)
Beginning Balance at Dec. 31, 2016	$ 19,745	14,101,689	145,353,067	1,230,511	(141,999,372)	(1,961,461)	$ (4,066,610)	12,677,569
Beginning Balance (Shares) at Dec. 31, 2016	19,744,675						(144,206)
Net loss					(5,821,596)			(5,821,596)
Common stock issued to new investors	$ 6,403		9,598,874					9,605,277
Common stock issued to new investors (Shares)	6,403,518
Share-based compensation for employee and director stock awards			491,247					491,247
Common stock issued to employees and directors for stock awards	$ 112		(112)
Common stock issued to employees and directors for stock awards (Shares)	111,499
Foreign currency translation adjustment						338,044		338,044
Ending Balance at Jun. 30, 2017	$ 26,260	$ 14,101,689	$ 155,443,076	$ 1,230,511	$ (147,820,968)	$ (1,623,417)	$ (4,066,610)	$ 17,290,541
Ending Balance (Shares) at Jun. 30, 2017	26,259,692						(144,206)

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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