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Common Stock Incentive, Stock Purchase Plans and Other Compensation Plans (Detail Textuals) (USD $)
 1 Months Ended 12 Months Ended 12 Months Ended
Mar. 31, 2009
Astrotech - Common Stock Incentive Plans
Jun. 30, 2014
Astrotech - Common Stock Incentive Plans
Jun. 30, 2014
Astrotech - The 1994 Plan
Jun. 30, 2014
Astrotech - The Directors' Stock Option Plan
Jun. 30, 2014
Astrotech - The 2008 Stock Incentive Plan
Jun. 30, 2014
Astrotech - The 2011 Stock Incentive Plan
Jun. 30, 2014
Astrotech - Stock Option Activity
Jun. 30, 2013
Astrotech - Stock Option Activity
Jun. 30, 2014
Astrotech - Restricted Stock Activity
Jun. 30, 2013
Astrotech - Restricted Stock Activity
Jun. 30, 2011
Astrotech - Securities Repurchase Program
Jun. 30, 2014
1st Detect - 2011 Stock Incentive Plan
Jun. 30, 2013
1st Detect - 2011 Stock Incentive Plan
Jun. 30, 2014
Incentive compensation
Jun. 30, 2013
Incentive compensation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                              
Common stock shares available for future issuance   3,672,501 395,000 50,000 5,500,000 1,750,000                  
Stock incentive plan vesting period     4 years 1 year 3 years                    
Stock incentive plan expiration period     10 years   10 years 10 years                  
Common stock shares available for grant       44,000 362,501 3,266,000                  
Award vesting rights        
Stock options previously awarded vested upon the Company's stock achieving a closing price of $1.63 on October 21, 2013, resulting in incremental compensation expense of $0.6 million. These options expire ten years from grant date or upon employee or director termination. Restricted shares awarded will vest 33.33% a year over a three year period and expire upon employee or director termination
Stock options previously awarded vested upon the Company's stock achieving a closing price of $1.63 on October 21, 2013, resulting in incremental compensation expense of $0.6 million. These options expire ten years from the grant date or upon employee or director termination.
                  
Common stock options and warrants granted           2,000,000                  
Aggregate intrinsic value of options exercisable             $ 2,100,000                
Compensation expense recognized         600,000 600,000 600,000 100,000              
Unrecognized compensation cost related to stock option and restricted awards             0 500,000 1,000 100,000   0 100,000    
Unrecognized compensation cost over a weighted-average period                 1 month 24 days            
Common stock repurchased - shares 300,000                   311,660        
Common stock repurchased - per share $ 0.40                   $ 0.76        
Common stock repurchased - value                     200,000        
Retirement of senior convertible notes                     1,100,000        
Common stock repurchase, authorized                     5,700,000        
Accrued incentive compensation                           $ 1,100,000 $ 400,000