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Common Stock Compensation Plans (Details 4)	12 Months Ended
Common Stock Compensation Plans (Details 4)	Jun. 30, 2012	Jun. 30, 2011
Fair Value Assumptions - Astrotech
Expected Dividend Yield	0.00%
Expected Volatility	0.77%
Risk-Free Interest Rates	0.20%
Expected Option Life (in years)	10 years 0 months 0 days
Fair Value Assumptions - Spacetech
Expected Dividend Yield	0.00%	0.00%
Expected Volatility	0.33%	0.66%
Risk-Free Interest Rates	0.10%	0.90%
Expected Option Life (in years)	10 years 0 months 0 days	2 years 0 months 0 days

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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