Share-Based Payments (Tables)

3 Months Ended

Sep. 30, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share based Compensation Arrangement By Share based Payment Award Fair Value Assumptions And Methodology [Table Text Block]

The table below indicates the key assumptions used in the option valuation calculations for options granted in the periods presented:

	Three Months Ended September 30,
	2013		2012
Term		8.5 Years		7.3 Years
Volatility		57.0%		59.2%
Dividend yield		—		—
Risk-free interest rate		2.4%		1.2%