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Net Loss per Share | 12 Months Ended
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Jun. 30, 2017
Earnings Per Share [Abstract] |
Net Loss per Share | Net Loss per Share Basic loss per share is computed on the basis of the weighted average number of shares of common stock outstanding during the period. Diluted net income per share is computed on the basis of the weighted average number of shares of common stock plus the effect of dilutive potential common shares outstanding during the period using the treasury stock method and the if-converted method. Dilutive potential common shares include outstanding stock options and shared-based awards. Reconciliation and the components of basic and diluted net loss per share are as follows (in thousands, except per share data):
|  | Year Ended June 30,
|  | 2017 |  | 2016
Numerator: |  |  |  |
Amounts attributable to Astrotech Corporation, basic and diluted: |  |  |  |
Net loss attributable to Astrotech Corporation |  | $ | (11,582 | ) |  | $ | (13,095 | )
Denominator: |  |  |  |
Denominator for basic and diluted net loss per share attributable to Astrotech Corporation — weighted average common stock outstanding |  | 20,418 |  |  | 20,388 |
Basic and diluted net loss per common share: |  |  |  |
Net loss attributable to Astrotech Corporation |  | $ | (0.57 | ) |  | $ | (0.64 | )
All unvested restricted stock awards for the year ended June 30, 2017 are not included in diluted net loss per share, as the impact to net loss per share is anti-dilutive. Options to purchase 1,826,264 shares of common stock at exercise prices ranging from $0.32 to $3.20 per share outstanding for the year ended June 30, 2017 were not included in diluted net loss per share, as the impact to net loss per share is anti-dilutive. Options to purchase 957,750 shares of common stock at exercise prices ranging from $0.32 to $3.20 per share outstanding for the year ended June 30, 2016 were not included in diluted net loss per share, as the impact to net loss per share is anti-dilutive.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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