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 Sep. 30, 2015	$ 12,856	$ 14,101,689	$ 138,036,080		$ (125,922,270)	$ (492,858)	$ (4,066,610)	$ 21,668,887
Beginning Balance (Shares) at Sep. 30, 2015	12,856,301						(144,206)
Net loss					(12,652,194)			(12,652,194)
Transfer to statutory reserves				$ 1,230,511	(1,230,511)
Common stock issued to investors	$ 6,584		5,510,016					5,516,600
Common stock issued to investors (Shares)	6,583,371
Share-based compensation for employee and director stock awards			1,462,197					1,462,197
Common stock issued to employees and directors for stock awards	$ 250		(250)					250,002
Common stock issued to employees and directors for stock awards (Shares)	250,002
Foreign currency translation adjustment						(905,494)		(905,494)
Ending Balance at Sep. 30, 2016	$ 19,690	14,101,689	145,008,043	1,230,511	(139,804,975)	(1,398,352)	$ (4,066,610)	15,089,996
Ending Balance (Shares) at Sep. 30, 2016	19,689,674						(144,206)
Net loss					(2,194,397)			(2,194,397)
Share-based compensation for employee and director stock awards			345,079					345,079
Common stock issued to employees and directors for stock awards	$ 55		(55)
Common stock issued to employees and directors for stock awards (Shares)	55,001
Foreign currency translation adjustment						(563,109)		(563,109)
Ending 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
Ending Balance (Shares) at Dec. 31, 2016	19,744,675						(144,206)
Net loss					(21,467,341)			(21,467,341)
Common stock issued to investors	$ 6,404		9,598,874					9,605,278
Common stock issued to investors (Shares)	6,403,518
Share-based compensation for employee and director stock awards			759,292					759,292
Common stock issued to employees and directors for stock awards	$ 219		(219)
Common stock issued to employees and directors for stock awards (Shares)	219,330
Foreign currency translation adjustment						620,928		620,928
Ending Balance at Dec. 31, 2017	$ 26,368	$ 14,101,689	$ 155,711,014	$ 1,230,511	$ (163,466,713)	$ (1,340,533)	$ (4,066,610)	$ 2,195,726
Ending Balance (Shares) at Dec. 31, 2017	26,367,523						(144,206)