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v2.4.1.9

Quarterly Information (unaudited) (Details Textual) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Feb. 28, 2013 | Nov. 30, 2012 | May 31, 2014 | Feb. 28, 2014 | Nov. 30, 2013 | Aug. 31, 2013 | May 31, 2013 | Aug. 31, 2012 | May 31, 2014 | May 31, 2013
Quarterly Information (Additional Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Transaction and related costs, UK facility | $ 920,000 us-gaap_BusinessExitCosts1 | $ 476,000 us-gaap_BusinessExitCosts1 |  |  |  |  |  |  |  |
Navilyst [Member] |  |  |  |  |  |  |  |  |  |
Quarterly Information (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Acquisition of related cost\transaction and related costs | 1,300,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = ango_NavilystMember | 1,700,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = ango_NavilystMember | 1,300,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = ango_NavilystMember | 1,400,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = ango_NavilystMember | 1,600,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = ango_NavilystMember | 1,200,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = ango_NavilystMember | 2,100,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = ango_NavilystMember | 2,200,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = ango_NavilystMember |  |
Consolidation charges |  |  | 400,000 us-gaap_BusinessCombinationIntegrationRelatedCosts / us-gaap_BusinessAcquisitionAxis = ango_NavilystMember | 1,000,000 us-gaap_BusinessCombinationIntegrationRelatedCosts / us-gaap_BusinessAcquisitionAxis = ango_NavilystMember |  |  |  |  |  |
Litigation related costs |  |  | 1,100,000 ango_LitigationCosts / us-gaap_BusinessAcquisitionAxis = ango_NavilystMember |  | 800,000 ango_LitigationCosts / us-gaap_BusinessAcquisitionAxis = ango_NavilystMember |  | 580,000 ango_LitigationCosts / us-gaap_BusinessAcquisitionAxis = ango_NavilystMember |  |  |
Quarterly Information (Additional Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Costs related to the discontinuance of product line | 1,600,000 ango_CostsOfProductLineDiscontinuance / us-gaap_BusinessAcquisitionAxis = ango_NavilystMember |  |  |  |  |  |  |  |  |
Transaction and related costs, UK facility |  |  |  |  |  |  | 717,000 us-gaap_BusinessExitCosts1 / us-gaap_BusinessAcquisitionAxis = ango_NavilystMember | 337,000 us-gaap_BusinessExitCosts1 / us-gaap_BusinessAcquisitionAxis = ango_NavilystMember |  |
Vortex Medical [Member] |  |  |  |  |  |  |  |  |  |
Quarterly Information (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Acquisition of related cost\transaction and related costs |  |  |  |  |  |  |  |  | 162,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = ango_VortexMedicalMember | 645,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = ango_VortexMedicalMember
Litigation related costs |  | 425,000 ango_LitigationCosts / us-gaap_BusinessAcquisitionAxis = ango_VortexMedicalMember |  |  |  |  |  |  |  |
Quarterly Information (Additional Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Gain (loss) on sale of product line |  | 770,000 ango_GainLossOnSaleOfProductLine / us-gaap_BusinessAcquisitionAxis = ango_VortexMedicalMember |  |  |  |  |  |  |  |
Clinical Devices, B.V. [Member] |  |  |  |  |  |  |  |  |  |
Quarterly Information (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Acquisition of related cost\transaction and related costs |  |  |  |  |  | 300,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = ango_ClinicalDevicesB.V.Member |  |  |  |
Vortex and Microsulis Medical Ltd [Member] |  |  |  |  |  |  |  |  |  |
Quarterly Information (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Acquisition of related cost\transaction and related costs | 414,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_BusinessAcquisitionAxis = ango_VortexAndMicrosulisMedicalLtdMember |  |  |  |  |  |  |  |  |
Litigation related costs | 901,000 ango_LitigationCosts / us-gaap_BusinessAcquisitionAxis = ango_VortexAndMicrosulisMedicalLtdMember |  |  |  |  |  |  |  |  |
Vortex Medical [Member] |  |  |  |  |  |  |  |  |  |
Quarterly Information (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |
Acquisition of related cost\transaction and related costs |  | $ 325,000 us-gaap_BusinessCombinationAcquisitionRelatedCosts / us-gaap_LitigationCaseAxis = ango_VortexMedicalMember |  |  |  |  |  |  |  |

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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e1043-128460 + Details
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- Definition Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs. + References No definition available. + Details
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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Includes, but is not limited to, one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and termination benefits associated with an ongoing benefit arrangement. Excludes expenses associated with special or contractual termination benefits, a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 + Details
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