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Common Stock Incentive, Stock Purchase Plans and Other Compensation Plans (Detail Textuals) - USD ($)		1 Months Ended			12 Months Ended
	Jun. 26, 2014	Apr. 30, 2016	Apr. 30, 2015	Oct. 31, 2014	Jun. 30, 2016	Jun. 30, 2015	Dec. 12, 2014	Jun. 30, 2011	Jun. 30, 2008
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate intrinsic value of options exercisable					$ 1,500,000
Aggregate intrinsic value of options					1,600,000
Unrecognized compensation cost related to stock option and restricted awards					$ 100,000
Expected Dividend Yield					0.00%	0.00%
Common stock repurchased - value					$ 156,000	$ 2,435,000
Astrotech - The 2008 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares available for future issuance (in shares)					10,000				5,500,000
Astrotech - The 2011 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares available for future issuance (in shares)								1,750,000
Common stock options and warrants granted (in shares)	2,000,000
Common stock shares available for grant (in shares)					1,611,907
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense recognized					$ 300,000	$ 100,000
Unrecognized compensation cost over a weighted-average period					2 years
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost over a weighted-average period						1 year 9 months 18 days
Unrecognized expensed recognized					$ 400,000	$ 1,000,000
Amended Securities Repurchase Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock repurchase - amount							$ 5,000,000
Share repurchases (in shares)					188,635
Common stock repurchased - value					$ 492,000
Common stock repurchased (in dollars per share)					$ 2.61
Common stock repurchase, authorized					$ 4,500,000
Amended Securities Repurchase Program | Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share repurchases (in shares)				100,000
Common stock repurchased (in dollars per share)				$ 2.56
Amended Securities Repurchase Program | Board Of Directors, Chief Executive Officer and Chief Financial Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share repurchases (in shares)			563,580
Common stock repurchased (in dollars per share)			$ 3.20
Amended Securities Repurchase Program | Chief Operating Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share repurchases (in shares)		7,075
Common stock repurchased (in dollars per share)		$ 2.02

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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-Publisher FASB
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Aggregate number of common shares reserved for future issuance.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

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Unrecognized cost of unvested options awarded to employees as compensation.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Gross number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Amount of stock repurchase plan authorized.

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Total cost of shares repurchased divided by the total number of shares repurchased.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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