Net Loss per Share

3 Months Ended

Sep. 30, 2011

(4) Net Loss per Share

Basic net loss per share is computed on the basis of the weighted average number of shares of common stock outstanding during the period. Diluted net loss 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, convertible debt, 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):


	Three Months Ended
	September 30,
	2011			2010
Numerator:
Net loss attributable to Astrotech Corporation, basic and diluted	$	(666	)	$	(1,163	)


Denominator:
Denominator for basic net loss per share attributable to Astrotech Corporation weighted average common stock outstanding		18,120			17,362

Dilutive common stock equivalents — common stock options and share-based awards		—			—

Denominator for diluted net loss per share attributable to Astrotech Corporation weighted average common stock outstanding and dilutive common stock equivalents		18,120			17,362


Basic net loss per share attributable to Astrotech Corporation	$	(0.04	)	$	(0.07	)
Diluted net loss per share attributable to Astrotech Corporation	$	(0.04	)	$	(0.07	)

As of September 30, 2010, the Senior Convertible notes payable outstanding, which were convertible into 340,904 shares of common stock at $15.00 per share, were not included in the computation of diluted net loss per share as the impact to net loss per share is anti-dilutive.

Options to purchase 1,153,350 shares of common stock at exercise prices ranging from $0.30 to $24.10 per share outstanding, for the three months ended September 30, 2011, were not included in diluted net loss per share, as the impact to net loss per share is anti-dilutive. Options to purchase 404,050 shares of common stock at exercise prices ranging from $0.30 to $34.38 per share outstanding for the three months ended September 30, 2010, were not included in diluted net loss per share as the impact to net loss per share is anti-dilutive.