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Stock Option Plan (Detail Textuals) (USD $) In Thousands, except Share data, unless otherwise specified | 12 Months Ended |  |  | 1 Months Ended | 12 Months Ended
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Jun. 30, 2014 | Jun. 30, 2014 Stock Option | Jun. 30, 2014 Stock Option Incentive Plan 2008 | Mar. 12, 2008 Stock Option Incentive Plan 2008 | Jun. 30, 2014 Stock Option Incentive Plan 2008 Class A common stock | Apr. 29, 2013 Non Qualified Stock Option Incentive Plan 2008 | Feb. 26, 2009 Non Qualified Stock Option Incentive Plan 2008 | Jun. 30, 2014 Non Qualified Stock Option Incentive Plan 2008
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Common shares available for grants |  |  |  | 6,630,000 | 5,131,620 |  |  |
Stock options exercise price |  |  |  |  |  | $ 11.83 | $ 11.83 |
Weighted-average grant-date fair value of the options |  |  |  |  |  |  |  | $ 0.99
Method used for valuation of fair value |  |  | Black-Scholes option pricing model |  |  |  |  |
Number of shares vested |  | 374,595 |  |  |  |  |  |
Aggregate intrinsic value |  | $ 15,164 |  |  |  |  |  |

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- Definition For each plan, identification of the award pricing model or other valuation method used in calculating the weighted average fair values disclosed. The model is also used to calculate the compensation expense that is shown within the balance sheet, income statement, and cash flow. Examples of valuation techniques are lattice models (binomial model), closed-form models (Black-Scholes-Merton formula), and a Monte Carlo simulation technique. Fair value is the amount at which an asset or liability could be bought or incurred or sold or settled in a current transaction between willing parties, that is, other than in a forced or liquidation sale. May include disclosures about the assumptions underlying application of the method selected. + 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)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + 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 (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + 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 (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of options vested. + References No definition available. + Details
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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. + References No definition available. + Details
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