Operating leases (Tables)

6 Months Ended

Dec. 31, 2014

Leases, Operating [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

Future minimum rental payments required under all leases that have remaining non-cancellable lease terms in excess of one year as of June 30, 2014 are as follows:

Year Ending June 30,
2015	$	305,171
2016		318,695
2017		209,912
2018		18,000
	$	851,778