Stock-Based Incentive Plan (Details 2) (USD $)	1 Months Ended				12 Months Ended
	Dec. 31, 2010 Common stock	Jul. 31, 2010 Common stock	Jun. 30, 2013 Common stock	Sep. 10, 2010 Common stock	Jun. 30, 2013 Stock Options and Incentive Warrants	Jun. 30, 2013 Stock Options	Jun. 30, 2012 Stock Options	Jun. 30, 2011 Stock Options
Number of Stock Options and Incentive Warrants
Stock Options and Incentive Warrants outstanding at the beginning of the period (in shares)					5,372,820
Exercised (in shares)					(550,000)
Stock Options and Incentive Warrants outstanding at the end of the period (in shares)					4,822,820
Vested or expected to vest at the end of the period (in shares)					4,822,820
Exercisable at the end of the period (in shares)					4,822,820
Weighted Average Exercise Price
Stock Options and Incentive Warrants outstanding at the beginning of the period (in dollars per share)					$ 1.83
Exercised (in dollars per share)					$ 0.47
Stock Options and Incentive Warrants outstanding at the end of the period (in dollars per share)					$ 1.99
Vested or expected to vest at the end of the period (in dollars per share)					$ 1.99
Exercisable at the end of the period (in dollars per share)					$ 1.99
Aggregate Intrinsic Value
Stock Options and Incentive Warrants outstanding at the end of the period					$ 43,020,890
Vested or expected to vest at the end of the period					43,020,890
Exercisable at the end of the period (in dollars)					43,020,890
Weighted Average Remaining Contractual Term (in years)
Stock Options and Incentive Warrants outstanding at the end of the period					2 years 7 months 6 days
Vested or expected to vest at the end of the period					2 years 7 months 6 days
Exercisable at the end of the period					2 years 7 months 6 days
Additional disclosures of Stock Options and Incentive Warrants
Market price of common stock on the last trading date of the period (in dollars per share)			$ 10.91	$ 5.49
Number of Stock Options exercised (in shares)	30,000	6,875				550,000	20,000	86,875
Aggregate intrinsic value of Stock Options exercised						$ 5,233,480	$ 54,000	$ 493,923