General Information (Policies)	3 Months Ended
General Information (Policies)	Sep. 30, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation – The accompanying unaudited condensed consolidated financial statements have been prepared by Astrotech Corporation in accordance with United States Generally Accepted Accounting Principles (“GAAP”) for interim financial information and the rules and regulations of the Securities and Exchange Commission. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments considered necessary for a fair presentation have been included. Operating results for the three months ended September 30, 2018 are not necessarily indicative of the results that may be expected for the year ending June 30, 2019. These financial statements should be read in conjunction with the financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended June 30, 2018.
Accounting Pronouncements	Accounting Pronouncements – In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842)” (“ASU 2016-02”). The new standard establishes a right-of-use (“ROU”) model that requires a lessee to record an ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. A modified retrospective transition approach is required for lessees for capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with certain practical expedients available. The new standard is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company is assessing the impact the adoption of ASU 2016-02 will have on its financial statements and plans to adopt this ASU in fiscal year 2020. In June 2016, the FASB issued ASU 2016-13, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments” (“ASU 2016-13”). ASU 2016-13 amends guidance on reporting credit losses for assets held at amortized cost basis and available-for-sale debt securities. For assets held at amortized cost basis, ASU 2016-13 eliminates the probable initial recognition threshold in current generally accepted accounting standards, and, instead, requires an entity to reflect its current estimate of all expected credit losses. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial assets to present the net amount expected to be collected. For available-for-sale debt securities, credit losses should be measured in a manner similar to current generally accepted accounting standards; however, ASU 2016-13 will require that credit losses be presented as an allowance rather than as a write-down. ASU 2016-13 affects entities holding financial assets and net investment in leases that are not accounted for at fair value through net income. This amendment affects loans, debt securities, trade receivables, net investments in leases, off balance sheet credit exposures, reinsurance receivables, and any other financial assets not excluded from the scope that have the contractual right to receive cash. ASU 2016-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The Company is currently evaluating the impact the adoption of this standard will have on its financial statements.
Our Business Units	Our Business Units 1^st Detect Corporation 1^st Detect is a manufacturer of advanced chemical detection technology that detects and identifies trace amounts of explosives and narcotics. In April 2018, the Company announced that the TRACER 1000 entered the Developmental Testing and Evaluation (“DT&E”) process at the Department of Homeland Security’s (“DHS”) Transportation Security Laboratory (“TSL”). Successful completion and passing of the DT&E phase would lead to TSL Certification. Certification is a step towards being listed on the Transportation Security Administration’s (“TSA”) Qualified Products List (“QPL”), and subsequently having the TRACER1000 potentially deployed in airports throughout the U.S. In addition, the Company also recently announced that the TRACER 1000 has been accepted into the TSA’s Air Cargo Screening Technology Qualification Test (“ACSQT”) program, representing a step toward inclusion on TSA’s exclusive Air Cargo Screening Technology List (“ACSTL”) and having the TRACER 1000 potentially deployed at airports and cargo facilities worldwide to screen air cargo. The instrument was designed to enable air carriers, freight forwarders, shippers, and independent cargo facilities to stay ahead of evolving threats while optimizing cargo throughput. Finally, the Company also announced that the TRACER 1000 was accepted into European Civil Aviation Conference’s (“ECAC”) evaluation process for both passenger and cargo security. ECAC is the European regulatory authority that oversees airport security. The ECAC Certification would be a significant milestone that would allow us to begin selling to international airports. With TSA and ECAC having two of the most rigorous technology review programs for explosives trace detector (“ETD”) instrumentation in the world, Certification or Qualification under any of the three programs above would be a significant endorsement that other customers would consider when procuring ETDs. There is no assurance that any of the further steps detailed in the milestones mentioned above will be achieved or that our technology will be approved by any of the programs listed. Astral Images Corporation Astral Images is a developer of advanced film restoration and enhancement software. Astral’s artificial intelligence (“AI”)-driven algorithms remove dust, scratches, and defects from film while converting the content to a digital format with significantly enhanced resolution. In addition, the intelligent software automatically restores the film’s original color, optimizing the content to be viewed in 4K.
Income Taxes	FASB ASC 740, “Income Taxes” addresses the accounting for uncertainty in income tax recognized in an entity’s financial statements and prescribes a recognition threshold and measurement attribute for financial statement disclosure of tax positions taken or expected to be taken on a tax return. The Company had an unrecognized tax benefit of $0 for each of the three months ended September 30, 2018 and 2017. Loss carryovers are generally subject to modification by tax authorities until three years after they have been utilized; as such, the Company is subject to examination for the fiscal years ended 2000 through present for federal purposes and fiscal years ended 2006 through present for state purposes. The reason for this extended examination period is due to the utilization of the loss carryovers generated by the sale of our Astrotech Space Operations business unit in fiscal year 2015.

Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.