Income taxes (Tables)

3 Months Ended

9 Months Ended

Mar. 31, 2016

Mar. 31, 2016

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

		Three months ended
		March 31,
		2016			2015
USA and BVI	$	(71,913	)	$	(451,045	)
China		(2,555,954	)		1,808,542
	$	(2,627,867	)	$	1,357,497

		Nine months ended
		March 31,
		2016			2015
USA and BVI	$	(820,759	)	$	(1,110,570	)
China		(4,650,896	)		(3,361	)
	$	(5,471,655	)	$	(1,113,931	)

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

		Three months ended
		March 31,
		2016		2015
Current provision:
USA	$	-	$	-
China		-		(203	)
Total current provision		-		(203	)
Deferred provision:
USA		-		-
China		-		(379,868	)
Total deferred provision		-		(379,868	)
Total provision for income taxes	$	-	$	(380,071	)

		Nine months ended
		March 31,
		2016		2015
Current provision:
USA	$	-	$	-
China		-		(330,029	)
Total current provision		-		(330,029	)
Deferred provision:
USA		-		-
China		-		(396,355	)
Total deferred provision		-		(396,355	)
Total provision for income taxes	$	-	$	(726,384	)

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

		March 31,			June 30,
		2016			2015
Deferred tax assets - current
Allowance for doubtful accounts	$	4,349,394		$	4,591,891
Valuation allowance		(2,609,637	)		(2,755,134	)
Total deferred tax assets - current	$	1,739,757		$	1,836,757
Deferred tax assets - non-current
Net operating loss carryforward in the U.S.	$	309,440		$	309,393
Impairment loss of long-lived assets		-			-
		309,440			309,393
Valuation allowance		(309,440	)		(309,393	)
Total deferred tax assets - non-current	$	-		$	-

Schedule of Changes to Valuation Allowance for Deferred Tax Assets [Table Text Block]

		Valuation
		Allowance
For deferred tax assets - current
As of June 30, 2015	$	2,755,134
Allowance for doubtful accounts		-
Increased allowance rate		-
Effect of exchange rate difference		(145,499	)
As of March 31, 2016	$	2,609,635

		Valuation
		Allowance
For deferred tax assets – noncurrent
As of June 30, 2015	$	309,393
Net operating loss carryforward in the U.S.		47
Impairment loss of long-lived assets		-
As of March 31, 2016	$	309,440

Schedule of Taxes Payable [Table Text Block]

		March 31,		June 30,
		2016		2015
Income taxes payable	$	-	$	-
Other taxes payable		53,455		12,859
Total taxes payable	$	53,455	$	12,859