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Stockholders' Equity (Details) - Jun. 30, 2015 - $ / shares	Total
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Stock options outstanding, number of shares outstanding	4,204,577
Stock options outstanding, weighted average remaining contractual life	9 years 4 days
Stock options outstanding, weighted average exercise price	$ 0.90
$0.32 - $0.65 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Stock options outstanding, exercise price range, lower limit	0.32
Stock options outstanding, exercise price range, upper limit	$ 0.65
Stock options outstanding, number of shares outstanding	3,443,680
Stock options outstanding, weighted average remaining contractual life	9 years 4 months 13 days
Stock options outstanding, weighted average exercise price	$ 0.41
Options exercisable	1,288,537
Options exercisable, weighted average exercise price	$ 0.49
$0.66 - $0.79 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Stock options outstanding, exercise price range, lower limit	0.66
Stock options outstanding, exercise price range, upper limit	$ 0.79
Stock options outstanding, number of shares outstanding	390,000
Stock options outstanding, weighted average remaining contractual life	8 years 6 months 15 days
Stock options outstanding, weighted average exercise price	$ 0.79
Options exercisable	390,000
Options exercisable, weighted average exercise price	$ 0.79
$0.80 - $12.25 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Stock options outstanding, exercise price range, lower limit	0.80
Stock options outstanding, exercise price range, upper limit	$ 12.25
Stock options outstanding, number of shares outstanding	370,897
Stock options outstanding, weighted average remaining contractual life	6 years 2 months 9 days
Stock options outstanding, weighted average exercise price	$ 5.51
Options exercisable	370,897
Options exercisable, weighted average exercise price	$ 5.51

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

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The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

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Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

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The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

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Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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