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Acquisitions (Details Textual) (USD $)
 0 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended 3 Months Ended 12 Months Ended 0 Months Ended
Oct. 15, 2012
May 31, 2012
May 31, 2013
May 22, 2012
May 31, 2014
May 31, 2014
Feb. 28, 2014
Nov. 30, 2013
Aug. 31, 2013
May 31, 2013
Feb. 28, 2013
Nov. 30, 2012
Aug. 31, 2012
May 31, 2012
Feb. 01, 2013
Aug. 15, 2013
Sep. 19, 2013
Dec. 31, 2013
Mar. 22, 2012
Acquisitions (Additional Textual) [Abstract]                                      
Goodwill   $ 309,091,000us-gaap_Goodwill $ 355,637,000us-gaap_Goodwill   360,473,000us-gaap_Goodwill $ 360,473,000us-gaap_Goodwill       $ 355,637,000us-gaap_Goodwill       $ 309,091,000us-gaap_Goodwill          
Projected Angio Vac ten year net sales following closing 10 years                                    
Senior secured term loan facility                                 100,000,000ango_SecuredLongTermDebtInitialBorrowingCapacity    
Purchase consideration placed in escrow         19,100,000ango_PurchaseConsiderationPlacedInEscrowAmount 19,100,000ango_PurchaseConsiderationPlacedInEscrowAmount                          
Purchase consideration placed in escrow in cash         14,000,000ango_PurchaseConsiderationCashAmountPlacedInEscrow 14,000,000ango_PurchaseConsiderationCashAmountPlacedInEscrow                          
Purchase consideration placed in escrow as common stock         415,000ango_PurchaseConsiderationNumberOfCommonStockPlacedInEscrow 415,000ango_PurchaseConsiderationNumberOfCommonStockPlacedInEscrow                          
Cash from escrow fund   2,500,000ango_ProceedsFromEscrowFund 2,500,000ango_ProceedsFromEscrowFund                                
Biomedical Polymer Additive [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Acquired intangible asset       12,100,000us-gaap_IndefinitelivedIntangibleAssetsAcquired
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= ango_BiomedicalPolymerAdditiveMember		                              
Power Injectable Port [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Acquired intangible asset       3,000,000us-gaap_IndefinitelivedIntangibleAssetsAcquired
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= ango_PowerInjectablePortMember		                              
Customer relationships [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Weighted average useful life     10 years 7 months 6 days   11 years 10 months 24 days                            
Acquired finite lived intangible assets       49,400,000us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember		                              
Weighted average useful life       15 years                              
Trademarks [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Weighted average useful life     9 years 10 months 24 days   8 years                            
Intangible assets acquired other than goodwill       32,500,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksMember		                              
Acquired finite lived intangible assets       3,900,000us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksMember		                              
Weighted average useful life       7 years                              
In-process R&D acquired [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Payments to Acquire Businesses, Net of Cash Acquired 15,100,000us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= ango_ResearchAndDevelopmentMember		                                    
Acquired intangible asset       15,100,000us-gaap_IndefinitelivedIntangibleAssetsAcquired
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= ango_ResearchAndDevelopmentMember		                              
Technology [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Acquired finite lived intangible assets       10,100,000us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= ango_TechnologyMember		                              
Weighted average useful life       6 years                              
Maximum [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Weighted average useful life         20 years                            
Minimum [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Weighted average useful life         3 years                            
Navilyst [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Cash payments at closing total       97,000,000us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		                              
Liabilities assumed       18,287,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		                              
Total estimated purchase consideration       361,000,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		                              
Goodwill       144,705,000us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		                              
Weighted average useful life       10 years                              
Acquisition of related cost\transaction and related costs           1,300,000us-gaap_BusinessCombinationAcquisitionRelatedCosts
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		 1,400,000us-gaap_BusinessCombinationAcquisitionRelatedCosts
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		 1,600,000us-gaap_BusinessCombinationAcquisitionRelatedCosts
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		 1,200,000us-gaap_BusinessCombinationAcquisitionRelatedCosts
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		 2,100,000us-gaap_BusinessCombinationAcquisitionRelatedCosts
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		 1,300,000us-gaap_BusinessCombinationAcquisitionRelatedCosts
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		 1,700,000us-gaap_BusinessCombinationAcquisitionRelatedCosts
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		 2,200,000us-gaap_BusinessCombinationAcquisitionRelatedCosts
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		            
Issuance of common stock       9,500,000us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		                              
Senior secured term loan facility       150,000,000ango_SecuredLongTermDebtInitialBorrowingCapacity
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		                              
Closing price of stock       $ 12.44us-gaap_BusinessAcquisitionSharePrice
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		                              
Transaction and severance costs related to acquisition     7,300,000ango_TransactionAndSeveranceCostsRelatedToAcquisition
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		                     11,200,000ango_TransactionAndSeveranceCostsRelatedToAcquisition
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		          
Intangible assets acquired other than goodwill       107,100,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		                              
Business acquisition proforma net income loss attributable to different component                           3,897,000us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		          
Adjustment related to credit facility due to business acquisition   150,000,000ango_DebtFinancingForBusinessAcquisitionAmount
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		                       150,000,000ango_DebtFinancingForBusinessAcquisitionAmount
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember		          
Navilyst [Member] | Trademark-NAMIC [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Acquired intangible asset       28,600,000us-gaap_IndefinitelivedIntangibleAssetsAcquired
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= ango_TrademarkNamicMember		 28,600,000us-gaap_IndefinitelivedIntangibleAssetsAcquired
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= ango_TrademarkNamicMember		                            
Avista Capital Partners [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Issuance of common stock         9,400,000us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
/ us-gaap_BusinessAcquisitionAxis
= ango_AvistaCapitalPartnersMember		                            
Common stock, outstanding shares, percentage         27.00%ango_BusinessAcquisitionPercentageOfEquityInterestsIssued
/ us-gaap_BusinessAcquisitionAxis
= ango_AvistaCapitalPartnersMember		 27.00%ango_BusinessAcquisitionPercentageOfEquityInterestsIssued
/ us-gaap_BusinessAcquisitionAxis
= ango_AvistaCapitalPartnersMember		                          
Vortex Medical [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Cash payments at closing total 15,105,000us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		                                    
Liabilities assumed 661,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		                                    
Total estimated purchase consideration 75,292,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		                                    
Estimated fair value contingent consideration 60,302,000us-gaap_BusinessCombinationContingentConsiderationLiability
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		                                    
Goodwill 29,519,000us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		       29,519,000us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		 29,519,000us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		                          
Weighted average useful life         15 years                            
Acquisition of related cost\transaction and related costs     645,000us-gaap_BusinessCombinationAcquisitionRelatedCosts
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		   162,000us-gaap_BusinessCombinationAcquisitionRelatedCosts
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		                            
Percentage of annual net sales, first limit         10.00%ango_BusinessAcquisitionContingentConsiderationPayableAsPercentageOfAnnualNetSalesFirstLimit
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		 10.00%ango_BusinessAcquisitionContingentConsiderationPayableAsPercentageOfAnnualNetSalesFirstLimit
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		                          
Annual net sales, first limit         150,000,000ango_BusinessAcquisitionContingentConsiderationPayableBasisAnnualNetSalesFirstLimitMaximum
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		 150,000,000ango_BusinessAcquisitionContingentConsiderationPayableBasisAnnualNetSalesFirstLimitMaximum
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		                          
Percentage of annual net sales, second limit         12.50%ango_BusinessAcquisitionContingentConsiderationPayableAsPercentageOfAnnualNetSalesSecondLimit
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		 12.50%ango_BusinessAcquisitionContingentConsiderationPayableAsPercentageOfAnnualNetSalesSecondLimit
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		                          
Annual net sales, second limit         150,000,000ango_BusinessAcquisitionContingentConsiderationPayableBasisAnnualNetSalesSecondLimitMinimum
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		 150,000,000ango_BusinessAcquisitionContingentConsiderationPayableBasisAnnualNetSalesSecondLimitMinimum
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		                          
Annual net sales         500,000,000ango_BusinessAcquisitionContingentConsiderationPayableBasisAnnualNetSalesSecondLimitMaximum
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		 500,000,000ango_BusinessAcquisitionContingentConsiderationPayableBasisAnnualNetSalesSecondLimitMaximum
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		                          
Percentage of annual net sales, third limit         15.00%ango_BusinessAcquisitionContingentConsiderationPayableAsPercentageOfAnnualNetSalesThirdLimit
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		 15.00%ango_BusinessAcquisitionContingentConsiderationPayableAsPercentageOfAnnualNetSalesThirdLimit
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		                          
Annual net sales, third limit         500,000,000ango_BusinessAcquisitionContingentConsiderationPayableBasisAnnualNetSalesThirdLimitMinimum
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		 500,000,000ango_BusinessAcquisitionContingentConsiderationPayableBasisAnnualNetSalesThirdLimitMinimum
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		                          
Guaranteed minimum payments payable first anniversary         8,350,000ango_BusinessAcquisitionContingentConsiderationPayableOnFirstAnniversary
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		 8,350,000ango_BusinessAcquisitionContingentConsiderationPayableOnFirstAnniversary
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		                          
Guaranteed minimum payments payable second anniversary         8,000,000ango_BusinessAcquisitionContingentConsiderationPayableOnSecondAnniversary
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		 8,000,000ango_BusinessAcquisitionContingentConsiderationPayableOnSecondAnniversary
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		                          
Guaranteed minimum payments payable third anniversary         8,000,000ango_BusinessAcquisitionContingentConsiderationPayableOnThirdAnniversary
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		 8,000,000ango_BusinessAcquisitionContingentConsiderationPayableOnThirdAnniversary
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		                          
Guaranteed minimum payments payable fourth anniversary         8,000,000ango_BusinessAcquisitionContingentConsiderationPayableOnFourthAnniversary
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		 8,000,000ango_BusinessAcquisitionContingentConsiderationPayableOnFourthAnniversary
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		                          
Guaranteed minimum payments payable fifth anniversary         7,650,000ango_BusinessAcquisitionContingentConsiderationPayableOnFifthAnniversary
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		 7,650,000ango_BusinessAcquisitionContingentConsiderationPayableOnFifthAnniversary
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		                          
Fair value of guaranteed contingent consideration 40,000,000ango_BusinessAcquisitionGuaranteedContingentConsiderationAtFairValue
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		                                    
Intangible assets acquired other than goodwill 72,430,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= ango_VortexMedicalMember		                                    
Microsulis Medical Ltd [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Investment in company                                     5,000,000us-gaap_EquityMethodInvestments
/ us-gaap_BusinessAcquisitionAxis
= ango_MicrosulisMedicalLtdMember
Ownership percentage in investment                                     14.30%ango_CostMethodInvestmentOwnershipPercentage
/ us-gaap_BusinessAcquisitionAxis
= ango_MicrosulisMedicalLtdMember
Cash payments at closing total                             10,566,000us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= ango_MicrosulisMedicalLtdMember		        
Business acquisition payment                                   5,000,000ango_BusinessAcquisitionCostOfAcquiredEntityPurchasePricePayable
/ us-gaap_BusinessAcquisitionAxis
= ango_MicrosulisMedicalLtdMember		  
Liabilities assumed                             1,634,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities
/ us-gaap_BusinessAcquisitionAxis
= ango_MicrosulisMedicalLtdMember		        
Total estimated purchase consideration                             33,550,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= ango_MicrosulisMedicalLtdMember		        
Cash payment for initial investment                             5,000,000ango_BusinessAcquisitionCostOfAcquiredEntityInitialInvestment
/ us-gaap_BusinessAcquisitionAxis
= ango_MicrosulisMedicalLtdMember		     5,000,000ango_BusinessAcquisitionCostOfAcquiredEntityInitialInvestment
/ us-gaap_BusinessAcquisitionAxis
= ango_MicrosulisMedicalLtdMember		  
Estimated fair value contingent consideration                             13,164,000us-gaap_BusinessCombinationContingentConsiderationLiability
/ us-gaap_BusinessAcquisitionAxis
= ango_MicrosulisMedicalLtdMember		        
Additional cash consideration payable period         9 years                            
Goodwill         19,284,000us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= ango_MicrosulisMedicalLtdMember		 19,284,000us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= ango_MicrosulisMedicalLtdMember		                 19,284,000us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= ango_MicrosulisMedicalLtdMember		        
Acquisition of related cost\transaction and related costs         257,000us-gaap_BusinessCombinationAcquisitionRelatedCosts
/ us-gaap_BusinessAcquisitionAxis
= ango_MicrosulisMedicalLtdMember		                            
Intangible assets acquired other than goodwill                             12,500,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= ango_MicrosulisMedicalLtdMember		        
Microsulis Medical Ltd [Member] | Maximum [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Weighted average useful life         15 years                            
Microsulis Medical Ltd [Member] | Minimum [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Weighted average useful life         10 years                            
Clinical Devices, B.V. [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Total estimated purchase consideration                               8,700,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= ango_ClinicalDevicesB.V.Member		      
Estimated fair value contingent consideration                               5,000,000us-gaap_BusinessCombinationContingentConsiderationLiability
/ us-gaap_BusinessAcquisitionAxis
= ango_ClinicalDevicesB.V.Member		      
Goodwill                               4,800,000us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= ango_ClinicalDevicesB.V.Member		      
Acquisition of related cost\transaction and related costs                 300,000us-gaap_BusinessCombinationAcquisitionRelatedCosts
/ us-gaap_BusinessAcquisitionAxis
= ango_ClinicalDevicesB.V.Member		                    
Intangible assets acquired other than goodwill                               5,100,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= ango_ClinicalDevicesB.V.Member		      
Stock purchase agreement payment holdback                               400,000ango_BusinessCombinationContingentConsiderationAssetCurrentWorkingCapitalAdjustmentHoldback
/ us-gaap_BusinessAcquisitionAxis
= ango_ClinicalDevicesB.V.Member		      
Deferred tax liability                               1,200,000us-gaap_DeferredTaxLiabilitiesDeferredExpense
/ us-gaap_BusinessAcquisitionAxis
= ango_ClinicalDevicesB.V.Member		      
Clinical Devices, B.V. [Member] | Trademark-NAMIC [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Acquired intangible asset         3,600,000us-gaap_IndefinitelivedIntangibleAssetsAcquired
/ us-gaap_BusinessAcquisitionAxis
= ango_ClinicalDevicesB.V.Member
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= ango_TrademarkNamicMember		                            
Clinical Devices, B.V. [Member] | Customer relationships [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Weighted average useful life                               15 years      
Customer relationships                               1,400,000us-gaap_FiniteLivedCustomerRelationshipsGross
/ us-gaap_BusinessAcquisitionAxis
= ango_ClinicalDevicesB.V.Member
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelationshipsMember		      
Clinical Devices, B.V. [Member] | Trademarks [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Weighted average useful life                               5 years      
Trademarks                               100,000us-gaap_FiniteLivedTrademarksGross
/ us-gaap_BusinessAcquisitionAxis
= ango_ClinicalDevicesB.V.Member
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksMember		      
Clinical Devices, B.V. [Member] | In Process Research and Development [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Weighted average useful life                               10 years      
Intangible assets acquired other than goodwill                               3,600,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= ango_ClinicalDevicesB.V.Member
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_InProcessResearchAndDevelopmentMember		      
Transaction Costs and Restructuring Charges [Member] | Navilyst [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Business acquisition proforma net income loss attributable to different component                           17,600,000us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember
/ us-gaap_NonrecurringAdjustmentAxis
= ango_TransactionCostsAndRestructuringChargesMember		          
Interest Expense [Member] | Navilyst [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Business acquisition proforma net income loss attributable to different component                           4,700,000us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss
/ us-gaap_BusinessAcquisitionAxis
= ango_NavilystMember
/ us-gaap_NonrecurringAdjustmentAxis
= us-gaap_InterestExpenseMember		          
Cash [Member] | Clinical Devices, B.V. [Member]                                      
Acquisitions (Additional Textual) [Abstract]                                      
Cash payments at closing total                               $ 3,700,000us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_CashMember
/ us-gaap_BusinessAcquisitionAxis
= ango_ClinicalDevicesB.V.Member