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Commitments and Contingencies (Details Textual) (USD $) | 0 Months Ended | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jan. 14, 2014 | Nov. 08, 2012 | May 31, 2014 Petition Lawsuit | May 31, 2013 | May 31, 2012
Commitments and Contingencies (Textual) [Abstract] |  |  |  |  |
Aggregate rental costs under operating leases |  |  | $ 2,000,000 us-gaap_LeaseAndRentalExpense | $ 2,500,000 us-gaap_LeaseAndRentalExpense | $ 3,100,000 us-gaap_LeaseAndRentalExpense
Number of lawsuits against biolitec previously settled for which seeking defense and indemnification |  |  | 2 ango_NumberOfLawsuits |  |
Partial judgment granted |  | 23,200,000 ango_PartialJudgmentGranted |  |  |
Judgment entered in favor | 74,900,000 us-gaap_LitigationSettlementAmount |  |  |  |
Number of petitions filed for reexamination of patents |  |  | 3 ango_NumberOfPatentsAssertedForReexamination |  |
Number of rejected patent claims |  |  | 40 of 41 patent |  |
Total future purchase obligations due through 2018 |  |  | 12,500,000 us-gaap_PurchaseObligation |  |
Purchase obligations after 2018 |  |  | $ 0 ango_PurchaseObligationDueAfterFourthYear |  |

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- Details
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- Definition Number of lawsuits. + References No definition available. + Details
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- Definition Number of patent claims rejected. + References No definition available. + Details
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- Definition Number of patents asserted for reexamination. + References No definition available. + Details
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- Definition Partial judgment granted in litigation matter. + References No definition available. + Details
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- Definition Purchase Obligation, Due After Fourth Year + References No definition available. + Details
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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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- Definition Amount of judgment or settlement awarded to (against) the entity in respect of litigation. + References No definition available. + Details
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- Definition Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. + References No definition available. + Details
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