Stock-Based Compensation	3 Months Ended
Sep. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	(2) Stock-Based Compensation At the annual meeting of shareholders of the Company, held on December 6, 2012, the Company’s shareholders approved the amended and restated Aceto Corporation 2010 Equity Participation Plan (the “2010 Plan”). Under the 2010 Plan, grants of stock options, restricted stock, restricted stock units, stock appreciation rights, and stock bonuses (collectively, “Stock Awards”) may be made to employees, non-employee directors and consultants of the Company, including the chief executive officer, chief financial officer and other named executive officers. The maximum number of shares of common stock of the Company that may be issued pursuant to Stock Awards granted under the 2010 Plan will not exceed, in the aggregate, 5,250 shares. In addition, restricted stock may be granted to an eligible participant in lieu of a portion of any annual cash bonus earned by such participant. Such award may include additional shares of restricted stock (premium shares) greater than the portion of bonus paid in restricted stock. The restricted stock award is vested at issuance and the restrictions lapse ratably over a period of years as determined by the Board of Directors, generally three years. The premium shares vest when all the restrictions lapse, provided that the participant remains employed by the Company at that time. During the three months ended September 30, 2015, the Company granted 208 shares of restricted common stock to its employees that vest over three years and 46 restricted stock units that have varying vest dates through August 2016. In addition, the Company also issued a target grant of 142 performance-vested restricted stock units, which grant could be as much as 248 if certain performance criteria and market conditions are met. Performance-vested restricted stock units will cliff vest 100% at the end of the third year following grant in accordance with the performance metrics set forth in the applicable employee performance-vested restricted stock unit grant. During the year ended June 30, 2015, the Company granted 165 shares of restricted common stock to its employees that vest over three years and 12 shares of restricted common stock to its non-employee directors, which vest over approximately one year as well as 67 restricted stock units that have varying vest dates through August 2016. In addition, the Company also issued a target grant of 116 performance-vested restricted stock units, which grant could be as much as 203 if certain performance criteria and market conditions are met. Performance-vested restricted stock units will cliff vest 100% at the end of the third year following grant in accordance with the performance metrics set forth in the applicable employee performance-vested restricted stock unit grant. For the three months ended September 30, 2015 and 2014, the Company recorded stock-based compensation expense of approximately $1,462 and $1,103, respectively, related to restricted common stock and restricted stock units. As of September 30, 2015, the total unrecognized compensation cost related to restricted stock awards and units is approximately $12,531.

Stock-Based Compensation

3 Months Ended

Sep. 30, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

(2) Stock-Based Compensation

At the annual meeting of shareholders of the Company, held on December 6, 2012, the Company’s shareholders approved the amended and restated Aceto Corporation 2010 Equity Participation Plan (the “2010 Plan”). Under the 2010 Plan, grants of stock options, restricted stock, restricted stock units, stock appreciation rights, and stock bonuses (collectively, “Stock Awards”) may be made to employees, non-employee directors and consultants of the Company, including the chief executive officer, chief financial officer and other named executive officers. The maximum number of shares of common stock of the Company that may be issued pursuant to Stock Awards granted under the 2010 Plan will not exceed, in the aggregate, 5,250 shares. In addition, restricted stock may be granted to an eligible participant in lieu of a portion of any annual cash bonus earned by such participant. Such award may include additional shares of restricted stock (premium shares) greater than the portion of bonus paid in restricted stock. The restricted stock award is vested at issuance and the restrictions lapse ratably over a period of years as determined by the Board of Directors, generally three years. The premium shares vest when all the restrictions lapse, provided that the participant remains employed by the Company at that time.

During the three months ended September 30, 2015, the Company granted 208 shares of restricted common stock to its employees that vest over three years and 46 restricted stock units that have varying vest dates through August 2016. In addition, the Company also issued a target grant of 142 performance-vested restricted stock units, which grant could be as much as 248 if certain performance criteria and market conditions are met. Performance-vested restricted stock units will cliff vest 100% at the end of the third year following grant in accordance with the performance metrics set forth in the applicable employee performance-vested restricted stock unit grant.

During the year ended June 30, 2015, the Company granted 165 shares of restricted common stock to its employees that vest over three years and 12 shares of restricted common stock to its non-employee directors, which vest over approximately one year as well as 67 restricted stock units that have varying vest dates through August 2016. In addition, the Company also issued a target grant of 116 performance-vested restricted stock units, which grant could be as much as 203 if certain performance criteria and market conditions are met. Performance-vested restricted stock units will cliff vest 100% at the end of the third year following grant in accordance with the performance metrics set forth in the applicable employee performance-vested restricted stock unit grant.

For the three months ended September 30, 2015 and 2014, the Company recorded stock-based compensation expense of approximately $1,462 and $1,103, respectively, related to restricted common stock and restricted stock units. As of September 30, 2015, the total unrecognized compensation cost related to restricted stock awards and units is approximately $12,531.