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Share-Based Compensation (Tables) | 12 Months Ended
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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 |

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph i -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 28 -Article 5 + Details
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