Related-party transactions (Details) - USD ($)	Mar. 31, 2015	Jun. 30, 2014
Related Party Transaction [Line Items]
Total due to related parties and directors	$ 449,567	$ 323,694
Due from related parties	4,223	0
M-Power Development Ptd Ltd [Member]
Related Party Transaction [Line Items]
Total due to related parties and directors	43,247	0
M-Power Investment Pte Ltd [Member]
Related Party Transaction [Line Items]
Total due to related parties and directors	317,365	323,694
Director [Member]
Related Party Transaction [Line Items]
Total due to related parties and directors	$ 88,955	$ 0