Common Stock Compensation Plans (Details Narrative) (USD $)	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Astrotech Common Stock Incentive Plans
Common stock reserved for future grants	1,462,653
The 1994 Plan
Share based compensation arrangement award description	Under the terms of the 1994 Plan, the number and price of the stock incentive awards granted to employees is determined by the Board of Directors and such grants vest, in most cases, incrementally over a period of four years and expire no more than ten years after the date of grant. The total number of shares that are available under this plan is 395,000. As of June 30, 2012, there are no shares available for grant. Based on the Articles of the 1994 stock incentive plan, no awards shall be granted more than ten years after the effective date of the plan unless amended.
Incentive shares available	395,000
Stock options and restricted shares granted	0
Director Stock Option Plan
Share based compensation arrangement award description	Options under the Directors' Plan vest after one year and expire seven years from the date of grant. The total number of options that are available under this plan is 50,000. Through June 30, 2012, there are 38,500 options available for grant.
Total options authorized under the plan	50,000
Options available for grant	38,500
Vesting periods	Vest after one year
Options expiration	7 years from date of grant
Space Media Inc. Stock Option Plan
Share based compensation arrangement award description	During the year ended June 30, 2000, Space Media, Inc., a majority-owned subsidiary of the Company, adopted an option plan under which 1,500,000 shares of our Common Stock have been reserved for future grants. The operations of SMI have been discontinued. No options were issued or are outstanding under this plan.
Total options authorized under the plan	1,500,000
Stock options and restricted shares granted	0
The 2008 Stock Incentive Plan
Share based compensation arrangement award description	The 2008 Plan was created to promote growth of the Company by aligning the long-term financial success of the Company with the employees, consultants and directors. In the first and second quarters of fiscal 2010, the compensation committee of the Board of Directors granted 1,995,559 and 410,000 restricted shares, respectively, to directors, named executive officers and employees in recognition of the positive fiscal 2009 financial and operating performance. The shares were issued from the 2008 Stock Incentive Plan.
Common stock reserved for future grants	36,418
Stock options granted to employees during the period	415,000
Restricted stock shares granted	25,000
Stock options and restricted shares granted	6,062,267
Shares cancelled	598,685
Vesting periods	Vest 33.33% a year over a 3 year period
Options expiration	Options expire 10 years from grant date or upon employee's or director's termination
The 2011 Stock Incentive Plan
Share based compensation arrangement award description	The 2011 Plan was designed to increase shareholder value by compensating employees over the long term. The plan is to be used to promote long-term financial success and execution of our business strategy.
Incentive shares available	1,386,000
Stock options granted to employees during the period	164,000
Stock options granted for services	200,000
Stock options and restricted shares granted	364,000
Vesting periods	Vest upon the Company's stock achieving a closing price of $1.50 per share
Options expiration	Options expire 10 years from grant date or upon employee's or director's termination
The 2011 1st Detect Stock Incentive Plan
Share based compensation arrangement award description	The 2011 Plan was designed to increase shareholder value by compensating employees over the long term. The plan is to be used to promote long-term financial success and execution of our business strategy.
Common stock reserved for future grants	1,545
Stock options granted to employees during the period	965
Shares cancelled	10
Vesting periods	Awards vest upon certain performance conditions being met
Options expiration	Options expire 10 years from grant date
The 1st Detect Stock Grants
Share based compensation arrangement award description	On January 19, 2010, an independent committee of the Board of Directors of 1st Detect, a subsidiary of the Company, approved a grant of 1,180 restricted stock shares, of which 75 have been subsequently cancelled, and 1,820 stock purchase warrants, of which 45 have been subsequently cancelled, to certain officers, directors and employees of 1st Detect. The awards vest 50% a year over a 2 year period. The restricted stock awards are equal to the fair market value of 1st Detect's common stock on the date of grant as determined by an independent valuation firm. The Company recognized compensation expense of $0.1 million for restricted stock outstanding for each of the years ended June 30, 2012 and 2011. The Company utilized the Black-Scholes methodology in determining the fair market value of the warrants of $0.2 million, of which $0.1 million was recognized for each of the years ended June 30, 2012 and 2011.
Restricted stock shares granted		1,180
Stock purchase warrants		1,820
Shares cancelled	75
Stock warrants cancelled	45
Vesting periods	Vest at 50% a year over a 2 year period
Fair market value of warrants recognized	$ 100,000	$ 100,000
Compensation expense recognized	100,000	100,000
Unrecognized compensation cost related to stock option and restricted awards	100,000
Unrecognized compensation cost over a weighted-average period	9 years 3 months 19 days
Astrogenetix Stock Grants
Share based compensation arrangement award description	On January 19, 2010, an independent committee of the Board of Directors of Astrogenetix, a subsidiary of the Company, approved a grant of 1,550 restricted stock shares, of which 375 have been subsequently cancelled, and 2,050 stock purchase warrants, of which 50 have been subsequently cancelled, to certain officers, directors and employees of Astrogenetix. The awards vest 50% a year over a 2 year period. The restricted stock awards are equal to the fair market value of Astrogentix's common stock on the date of grant as determined by an independent valuation firm. The Company recognized compensation expense of $0.1 million for restricted stock outstanding for each of the years ended June 30, 2012 and 2011. The Company utilized the Black-Scholes methodology in determining the fair market value of the warrants of $0.1 million, of which $0.1 million was recognized for each of the years ended June 30, 2012 and 2011.
Restricted stock shares granted		1,550
Stock purchase warrants		2,050
Shares cancelled	375
Stock warrants cancelled	50
Vesting periods	Vest at 50% a year over a 2 year period
Fair market value of warrants recognized	100,000	100,000
Compensation expense recognized	100,000	100,000
Stock Option Activity Summary
Compensation expense recognized	100,000	(100,000)
Aggregate intrinsic value of options exercisable	200,000
Unrecognized compensation cost related to stock option and restricted awards	300,000
Unrecognized compensation cost over a weighted-average period	9 years 2 months 13 days
Astrotech Restricted Stock
Unrecognized compensation cost related to stock option and restricted awards	100,000	900,000
Unrecognized compensation cost over a weighted-average period	0 years 2 months 13 days
Restricted Stock 1st Detect Co
Unrecognized compensation cost related to stock option and restricted awards		100,000
Astrogenetix Restricted Stock
Unrecognized compensation cost related to stock option and restricted awards		100,000
Other Stock Based Incentive Awards
Share based compensation arrangement award description	In December 2007 we issued 239,900 performance shares out of the 1994 Plan. Subsequent to issuance 179,000 shares were forfeited, accordingly 60,900 shares vested in February 2011. The performance shares were valued at the close of business on the date of grant, and recognized expense and accrued an incentive compensation liability, pro rata over the vesting period.
Compensation expense recognized		100,000
Cash Based Long Term Incentive Awards
Share based compensation arrangement award description	The Compensation Committee of the Board of Directors adopted and implemented a Long-Term Cash Incentive Plan during the second quarter of fiscal year 2008. The Long-Term Cash Incentive Plan pays cash awards to employees upon the successful completion of certain events and passage of time as established by the Compensation Committee. In the year ended June 30, 2008, the Compensation Committee awarded Long-Term Cash Incentive Units valued at $0.3 million to employees.
Vesting periods	Vested 50% in August 2010 and 50% in February 2011
Compensation expense recognized		100,000
Long-term cash incentive award - cash paid to employees		100,000
Securities Repurchase Program
Share based compensation arrangement award description	In March 2009, the Company repurchased 300,000 shares of Common Stock at a price of $0.40 per share, pursuant to the securities repurchase program. Common stock repurchases under the Company's securities repurchase program may be made from time-to-time, in the open market, through block trades or otherwise in accordance with applicable regulations of the Securities and Exchange Commission. Depending on market conditions and other factors, these purchases may be commenced or suspended at any time or from time-to-time without prior notice. Additionally, the timing of such transactions will depend on other corporate strategies and will be at the discretion of the management of the Company.
Common stock repurchased - shares		311,660
Common stock repurchased - value		200,000
Common stock repurchased - average cost per share		$ 0.76
Retirement of senior convertible notes		1,100,000
Remaining authorized repurchase amount	$ 5,700,000