Accounting Policies (Policies)	6 Months Ended
Dec. 31, 2018
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The condensed consolidated financial statements of Aceto Corporation and subsidiaries (“Aceto” or the “Company”) included herein have been prepared by the Company and reflect all adjustments (consisting solely of normal recurring adjustments) necessary to present fairly the financial position, results of operations and cash flows for all periods presented. Interim results are not necessarily indicative of results which may be achieved for the full year. The preparation of financial statements in conformity with U.S. generally accepted accounting principles (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses reported in those financial statements and the disclosure of contingent assets and liabilities at the date of the financial statements. These judgments can be subjective and complex, and consequently actual results could differ from those estimates and assumptions. The Company’s most critical accounting policies relate to revenue recognition; allowance for doubtful accounts; inventory; goodwill and other indefinite-life intangible assets; long-lived assets; environmental matters and other contingencies; income taxes; stock-based compensation; and purchase price allocation. These condensed consolidated financial statements do not include all disclosures associated with consolidated financial statements prepared in accordance with GAAP. Accordingly, these statements should be read in conjunction with the Company’s consolidated financial statements and notes thereto contained in the Company’s Form 10-K for the year ended June 30, 2018.
Going Concern Consideration	Going Concern Consideration As indicated in the accompanying interim unaudited condensed consolidated financial statements, the Company had working capital at December 31, 2018 of $953 as compared with $200,109 at June 30, 2018. As more fully discussed in Note 6, the maturity date of the bank loans was revised from December 21, 2021 to June 30, 2019, resulting in the classification of the indebtedness outstanding under the Company’s credit facility as a current liability as of December 31, 2018. The Company has accumulated deficit and continued operating losses. The Company also continues to spend heavily on financial and legal professionals retained by the Company to deal with ongoing negative factors in the generic drug market and pending legal proceedings. As a result, the Company’s cash position declined from $100,874 at June 30, 2018 to $41,782 at December 31, 2018 and its working capital declined from $200,109 at June 30, 2018 to $953 at December 31, 2018. While the Company’s operating businesses continue to generate cash, the current demands upon the Company and its liquidity remain significant. These factors, among others, indicate that the Company will need to be reliant upon its previously announced strategic alternatives initiative to supplement its cash, liquid assets and operating cash flows, and to retire debt. Accordingly, because the Company cannot at this time conclude that these actions are probable of occurring, under applicable accounting standards and because of the high degree of uncertainty and dependence upon factors outside of our control associated with the Bankruptcy Filing described below, substantial doubt is deemed to exist about the Company’s ability to continue as a going concern. These Condensed Consolidated Financial Statements have been prepared on a going concern basis, which contemplates the realization of assets and the satisfaction of certain liabilities and other commitments in the normal course of business. The accompanying Condensed Consolidated Financial Statements do not include any adjustments to reflect the possible future effects of this uncertainty on the recoverability or classification of recorded asset amounts or the amounts or classification of liabilities. On February 19, 2019, the Company and certain of its U.S. subsidiaries (collectively with the Company, the “Debtors”) each filed a voluntary petition for relief (the “Bankruptcy Filing”) under chapter 11 of title 11 of the United States Code (the “Bankruptcy Code”) in the United States Bankruptcy Court for the District of New Jersey (the “Bankruptcy Court”). The Debtors have proposed to jointly administer their chapter 11 cases under the caption In re Aceto Corporation, et al. (the “Chapter 11 Case”). For the duration of the Chapter 11 Cases, our operations are subject to risks and uncertainties associated with chapter 11 proceedings. As a result of these risks and uncertainties, our assets, liabilities, shareholders’ equity, officers and/or directors could be significantly different following the conclusion of the Chapter 11 Cases, and the description of our operations, properties and capital plans included in this quarterly report on Form 10-Q may not reflect our actual operations, properties and capital plans following the conclusion of the Chapter 11 Cases. We intend to sell substantially all of our assets pursuant to one or more sales under Section 363 of the Bankruptcy Code. If we are unable to complete one or more sales of the Company’s assets, it may be necessary to explore a plan of reorganization or liquidation or our Chapter 11 Cases may be converted to a chapter 7 liquidation process.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In August 2018, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement. The primary focus of ASU 2018-13 is to improve the effectiveness of the disclosure requirements for fair value measurements. The changes affect all companies that are required to include fair value measurement disclosures. In general, the amendments in ASU 2018-13 are effective for all entities for fiscal years and interim periods within those fiscal years, beginning after December 15, 2019. An entity is permitted to early adopt the removed or modified disclosures upon the issuance of ASU 2018-13 and may delay adoption of the additional disclosures, which are required for public companies only, until their effective date. The Company is currently evaluating the impact these changes will have on the Company’s consolidated financial statements and disclosures. In June 2018, the FASB issued ASU 2018-07 Compensation – Stock Compensation (Topic 718), Improvements to Nonemployee Share-Based Payment Accounting. This ASU is intended to simplify aspects of share-based compensation issued to non-employees by making the guidance consistent with the accounting for employee share-based compensation. It is effective for annual reporting periods, and interim periods within those years, beginning after December 15, 2018. The Company does not believe this new accounting standard update will have a material impact on its consolidated financial statements. In February 2018, the FASB issued ASU 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which gives entities the option to reclassify the disproportionate income tax effects ("stranded tax effects") caused by the newly-enacted U.S. Tax Cuts and Jobs Act from accumulated other comprehensive income to retained earnings. The update also requires new disclosures, some of which are applicable for all entities. The guidance in ASU 2018-02 is effective for annual reporting periods beginning after December 15, 2018, with early adoption permitted. The Company does not believe this new accounting standard update will have a material impact on its consolidated financial statements. In August 2017, the FASB issued ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities, which has the objective of improving the financial reporting of hedging relationships to better portray the economic results of an entity’s risk management activities in its financial statements. In addition to that main objective, the amendments in ASU 2017-12 make certain targeted improvements to simplify the application of the hedge accounting guidance in current GAAP. In October 2018, the FASB issued ASU 2018-16, Derivatives and Hedging (Topic 815): Inclusion of the Secured Overnight Financing Rate (SOFR) Overnight Index Swap (OIS) Rate as a Benchmark Interest Rate for Hedge Accounting Purposes. ASU 2018-16 expands the list of U.S. benchmark interest rates permitted in the application of hedge accounting. The amendments in ASU 2017-12 and ASU 2018-16 are effective for public business entities for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the impact of the provisions of ASU 2017-12 and ASU 2018-16. In May 2017, the FASB issued ASU 2017-09, Compensation – Stock Compensation (Topic 718): Scope of Modification Accounting, which provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. ASU 2017-09 is effective for all entities for annual periods, and interim periods within those annual periods, beginning after December 15, 2017. Early adoption is permitted. The Company adopted ASU 2017-09 in the first quarter of fiscal 2019. The adoption did not have any impact on the Company’s condensed consolidated financial statements. In January 2017, the FASB issued ASU 2017-01 Business Combinations (Topic 805): Clarifying the Definition of a Business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. ASU 2017-01 is effective for public companies for annual periods beginning after December 15, 2017, including interim periods within those periods. The adoption did not have any impact on the Company’s condensed consolidated financial statements. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments, which addresses eight specific cash flow issues with the objective of reducing diversity in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. ASU 2016-15 is effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. The Company adopted ASU 2016-15 in the first quarter of fiscal 2019. The adoption did not have any impact on the Company’s condensed consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) as amended in July 2018 by ASU 2018-10, Codification Improvements to Topic 842, Leases and ASU 2018-11, Leases (Topic 842), Targeted Improvements, that replace existing lease guidance. The new standard is intended to provide enhanced transparency and comparability by requiring lessees to record right-of-use assets and corresponding lease liabilities on the balance sheet. The new guidance will continue to classify leases as either finance or operating, with classification affecting the pattern of expense recognition in the statement of income. These ASU’s are effective for fiscal years (and interim reporting periods within those years) beginning after December 15, 2018. The Company is currently evaluating the impact of the provisions of these ASU’s and anticipates recognition of additional assets and corresponding liabilities relating to these leases on its consolidated balance sheet but does not expect the adjustment to be material assuming no changes in lease activity.

Accounting Policies (Policies)

6 Months Ended

Dec. 31, 2018

Basis of Presentation

The condensed consolidated financial statements of Aceto Corporation and subsidiaries (“Aceto” or the “Company”) included herein have been prepared by the Company and reflect all adjustments (consisting solely of normal recurring adjustments) necessary to present fairly the financial position, results of operations and cash flows for all periods presented. Interim results are not necessarily indicative of results which may be achieved for the full year.

The preparation of financial statements in conformity with U.S. generally accepted accounting principles (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses reported in those financial statements and the disclosure of contingent assets and liabilities at the date of the financial statements. These judgments can be subjective and complex, and consequently actual results could differ from those estimates and assumptions. The Company’s most critical accounting policies relate to revenue recognition; allowance for doubtful accounts; inventory; goodwill and other indefinite-life intangible assets; long-lived assets; environmental matters and other contingencies; income taxes; stock-based compensation; and purchase price allocation.

These condensed consolidated financial statements do not include all disclosures associated with consolidated financial statements prepared in accordance with GAAP. Accordingly, these statements should be read in conjunction with the Company’s consolidated financial statements and notes thereto contained in the Company’s Form 10-K for the year ended June 30, 2018.

Going Concern Consideration

Going Concern Consideration

As indicated in the accompanying interim unaudited condensed consolidated financial statements, the Company had working capital at December 31, 2018 of $953 as compared with $200,109 at June 30, 2018. As more fully discussed in Note 6, the maturity date of the bank loans was revised from December 21, 2021 to June 30, 2019, resulting in the classification of the indebtedness outstanding under the Company’s credit facility as a current liability as of December 31, 2018. The Company has accumulated deficit and continued operating losses. The Company also continues to spend heavily on financial and legal professionals retained by the Company to deal with ongoing negative factors in the generic drug market and pending legal proceedings. As a result, the Company’s cash position declined from $100,874 at June 30, 2018 to $41,782 at December 31, 2018 and its working capital declined from $200,109 at June 30, 2018 to $953 at December 31, 2018. While the Company’s operating businesses continue to generate cash, the current demands upon the Company and its liquidity remain significant. These factors, among others, indicate that the Company will need to be reliant upon its previously announced strategic alternatives initiative to supplement its cash, liquid assets and operating cash flows, and to retire debt. Accordingly, because the Company cannot at this time conclude that these actions are probable of occurring, under applicable accounting standards and because of the high degree of uncertainty and dependence upon factors outside of our control associated with the Bankruptcy Filing described below, substantial doubt is deemed to exist about the Company’s ability to continue as a going concern. These Condensed Consolidated Financial Statements have been prepared on a going concern basis, which contemplates the realization of assets and the satisfaction of certain liabilities and other commitments in the normal course of business. The accompanying Condensed Consolidated Financial Statements do not include any adjustments to reflect the possible future effects of this uncertainty on the recoverability or classification of recorded asset amounts or the amounts or classification of liabilities.

On February 19, 2019, the Company and certain of its U.S. subsidiaries (collectively with the Company, the “Debtors”) each filed a voluntary petition for relief (the “Bankruptcy Filing”) under chapter 11 of title 11 of the United States Code (the “Bankruptcy Code”) in the United States Bankruptcy Court for the District of New Jersey (the “Bankruptcy Court”). The Debtors have proposed to jointly administer their chapter 11 cases under the caption In re Aceto Corporation, et al. (the “Chapter 11 Case”).

For the duration of the Chapter 11 Cases, our operations are subject to risks and uncertainties associated with chapter 11 proceedings. As a result of these risks and uncertainties, our assets, liabilities, shareholders’ equity, officers and/or directors could be significantly different following the conclusion of the Chapter 11 Cases, and the description of our operations, properties and capital plans included in this quarterly report on Form 10-Q may not reflect our actual operations, properties and capital plans following the conclusion of the Chapter 11 Cases.

We intend to sell substantially all of our assets pursuant to one or more sales under Section 363 of the Bankruptcy Code. If we are unable to complete one or more sales of the Company’s assets, it may be necessary to explore a plan of reorganization or liquidation or our Chapter 11 Cases may be converted to a chapter 7 liquidation process.

Recent Accounting Pronouncements

Recent Accounting Pronouncements

In August 2018, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement. The primary focus of ASU 2018-13 is to improve the effectiveness of the disclosure requirements for fair value measurements. The changes affect all companies that are required to include fair value measurement disclosures. In general, the amendments in ASU 2018-13 are effective for all entities for fiscal years and interim periods within those fiscal years, beginning after December 15, 2019. An entity is permitted to early adopt the removed or modified disclosures upon the issuance of ASU 2018-13 and may delay adoption of the additional disclosures, which are required for public companies only, until their effective date. The Company is currently evaluating the impact these changes will have on the Company’s consolidated financial statements and disclosures.

In June 2018, the FASB issued ASU 2018-07 Compensation – Stock Compensation (Topic 718), Improvements to Nonemployee Share-Based Payment Accounting. This ASU is intended to simplify aspects of share-based compensation issued to non-employees by making the guidance consistent with the accounting for employee share-based compensation. It is effective for annual reporting periods, and interim periods within those years, beginning after December 15, 2018. The Company does not believe this new accounting standard update will have a material impact on its consolidated financial statements.

In February 2018, the FASB issued ASU 2018-02, Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which gives entities the option to reclassify the disproportionate income tax effects ("stranded tax effects") caused by the newly-enacted U.S. Tax Cuts and Jobs Act from accumulated other comprehensive income to retained earnings. The update also requires new disclosures, some of which are applicable for all entities. The guidance in ASU 2018-02 is effective for annual reporting periods beginning after December 15, 2018, with early adoption permitted. The Company does not believe this new accounting standard update will have a material impact on its consolidated financial statements.

In August 2017, the FASB issued ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities, which has the objective of improving the financial reporting of hedging relationships to better portray the economic results of an entity’s risk management activities in its financial statements. In addition to that main objective, the amendments in ASU 2017-12 make certain targeted improvements to simplify the application of the hedge accounting guidance in current GAAP. In October 2018, the FASB issued ASU 2018-16, Derivatives and Hedging (Topic 815): Inclusion of the Secured Overnight Financing Rate (SOFR) Overnight Index Swap (OIS) Rate as a Benchmark Interest Rate for Hedge Accounting Purposes. ASU 2018-16 expands the list of U.S. benchmark interest rates permitted in the application of hedge accounting. The amendments in ASU 2017-12 and ASU 2018-16 are effective for public business entities for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the impact of the provisions of ASU 2017-12 and ASU 2018-16.

In May 2017, the FASB issued ASU 2017-09, Compensation – Stock Compensation (Topic 718): Scope of Modification Accounting, which provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. ASU 2017-09 is effective for all entities for annual periods, and interim periods within those annual periods, beginning after December 15, 2017. Early adoption is permitted. The Company adopted ASU 2017-09 in the first quarter of fiscal 2019. The adoption did not have any impact on the Company’s condensed consolidated financial statements.

In January 2017, the FASB issued ASU 2017-01 Business Combinations (Topic 805): Clarifying the Definition of a Business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. ASU 2017-01 is effective for public companies for annual periods beginning after December 15, 2017, including interim periods within those periods. The adoption did not have any impact on the Company’s condensed consolidated financial statements.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments, which addresses eight specific cash flow issues with the objective of reducing diversity in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. ASU 2016-15 is effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. The Company adopted ASU 2016-15 in the first quarter of fiscal 2019. The adoption did not have any impact on the Company’s condensed consolidated financial statements.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) as amended in July 2018 by ASU 2018-10, Codification Improvements to Topic 842, Leases and ASU 2018-11, Leases (Topic 842), Targeted Improvements, that replace existing lease guidance. The new standard is intended to provide enhanced transparency and comparability by requiring lessees to record right-of-use assets and corresponding lease liabilities on the balance sheet. The new guidance will continue to classify leases as either finance or operating, with classification affecting the pattern of expense recognition in the statement of income. These ASU’s are effective for fiscal years (and interim reporting periods within those years) beginning after December 15, 2018. The Company is currently evaluating the impact of the provisions of these ASU’s and anticipates recognition of additional assets and corresponding liabilities relating to these leases on its consolidated balance sheet but does not expect the adjustment to be material assuming no changes in lease activity.