Share-Based Compensation (Tables)

12 Months Ended

Jun. 30, 2013

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

Stock Option Awards Fair Value Valuation Assumptions

The fair value of stock option awards was estimated using the Black-Scholes option-pricing model with the following assumptions and weighted-average fair values:

	June 30,
	2013		2012		2011
Risk-free interest rate	0.82	%	0.59% - 1.41%		1.33% - 2.64%
Dividend yield	—	%	—	%	—	%
Expected life in years	5.0 - 6.08		3.0 - 6.65		3.0 - 6.65
Expected volatility	127	%	119% - 137%		125% - 129%

Summary of Stock Option Activity

The following is a summary of stock option activity for the years ended June 30, 2013, 2012 and 2011:

	Options (in thousands)		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in thousands)
Outstanding at June 30, 2010	8,536		$	0.50	8.39	$	820
Granted	2,632		$	1.04	9.65	$	1,336
Exercised	(470	)	$	0.32	7.54	$	252
Forfeited	(200	)	$	0.74
Expired or Cancelled	—		$	—
Outstanding at June 30, 2011	10,498		$	0.64	7.93	$	9,139
Granted	2,086		$	1.89	9.61	$	2,122
Exercised	(1,612	)	$	0.45	6.97	$	2,038
Forfeited	(27	)	$	1.36
Expired or Cancelled	—		$	—
Outstanding at June 30, 2012	10,945		$	0.91	7.43	$	21,219
Granted	152		$	2.82	9.03	$	—
Exercised	(3,319	)	$	0.49	5.46	$	7,128
Forfeited	(768	)	$	1.54
Expired or Cancelled	—
Outstanding at June 30, 2013	7,010		$	1.08	6.71	$	9,211
Exercisable at June 30, 2013	5,609		$	0.81	6.30	$	8,574

Summary of Nonvested Restricted Shares

The following is a summary of restricted shares granted during the years ended June 30, 2013 and 2012:

Nonvested Shares	Shares (in thousands)		Weighted Average Grant Date Fair Value
Nonvested at June 30, 2011	—		—
Granted	164		$	3.34
Vested	—		—
Forfeited	(2	)	$	3.36
Nonvested at June 30, 2012	162		3.34
Vested at June 30, 2012	—		—
Granted	2,808		2.62
Vested	(37	)	—
Forfeited	(196	)	3.25
Nonvested at June 30, 2013	2,737		2.61
Vested at June 30, 2013	—		—

Summary of the Warrants Granted

The following is a summary of the warrant activity for the years ended June 30, 2013, 2012 and 2011 (in thousands):

	Common Stock Warrants
Outstanding and exercisable, June 30, 2010	38,580
Issued	108
Cancelled	—
Exercised	(13,228	)
Expired	—
Outstanding and exercisable at June 30, 2011	25,460
Issued	270
Cancelled	—
Exercised	(12,563	)
Expired	(203	)
Outstanding and exercisable at June 30, 2012	12,964
Issued	—
Cancelled	—
Exercised	(4,723	)
Expired	—
Outstanding and exercisable at June 30, 2013	8,241