Other Assets	12 Months Ended
May 31, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets	OTHER ASSETS On March 2, 2015, the Company filed an 8-K stating that it executed a non-binding letter of intent to enter into a strategic relationship with privately-held EmboMedics Inc., which develops injectable and resorbable embolic microspheres. On April 9, 2015, the Company entered into a License, Distribution, Manufacturing and Purchase Option Agreement with EmboMedics Inc, subject to certain approvals by EmboMedics shareholders. Under the terms of the agreement, AngioDynamics received an exclusive worldwide license to market and sell, upon regulatory clearances, EmboMedics’ microsphere technology. AngioDynamics has the ability to determine the manufacturing of the products. On December 7, 2015, AngioDynamics made an initial $2.0 million purchase of non-transferable warrants in a subsidiary of EmboMedics which become exercisable upon a change of control of EmboMedics. The Company does not have significant influence, or control of the subsidiary. This initial investment is recorded at cost and the Company will review for impairment at each balance sheet date. The warrants are not exercisable at the original issue date or the balance sheet date as they only become exercisable upon a change of control, termination of the agreement or delivery of an offer notice. Based on the achievement of certain development activities, the Company will make an additional $5.0 million purchase of non-transferable warrants and an additional $4.0 million in milestone payments based on regulatory approvals. In the future, AngioDynamics could execute an exclusive option to acquire this subsidiary of EmboMedics.

OTHER ASSETS

On March 2, 2015, the Company filed an 8-K stating that it executed a non-binding letter of intent to enter into a strategic relationship with privately-held EmboMedics Inc., which develops injectable and resorbable embolic microspheres. On April 9, 2015, the Company entered into a License, Distribution, Manufacturing and Purchase Option Agreement with EmboMedics Inc, subject to certain approvals by EmboMedics shareholders. Under the terms of the agreement, AngioDynamics received an exclusive worldwide license to market and sell, upon regulatory clearances, EmboMedics’ microsphere technology. AngioDynamics has the ability to determine the manufacturing of the products.

On December 7, 2015, AngioDynamics made an initial $2.0 million purchase of non-transferable warrants in a subsidiary of EmboMedics which become exercisable upon a change of control of EmboMedics. The Company does not have significant influence, or control of the subsidiary. This initial investment is recorded at cost and the Company will review for impairment at each balance sheet date. The warrants are not exercisable at the original issue date or the balance sheet date as they only become exercisable upon a change of control, termination of the agreement or delivery of an offer notice. Based on the achievement of certain development activities, the Company will make an additional $5.0 million purchase of non-transferable warrants and an additional $4.0 million in milestone payments based on regulatory approvals. In the future, AngioDynamics could execute an exclusive option to acquire this subsidiary of EmboMedics.