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Sale of Property (Details Narrative) (USD $) | 1 Months Ended | 0 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2008 | Apr. 07, 2014 | Dec. 31, 2014 | Dec. 31, 2013
Accrual for environmental remediation and monitoring |  |  | $ 265,876 us-gaap_AccrualForEnvironmentalLossContingencies | $ 39,044 us-gaap_AccrualForEnvironmentalLossContingencies
Bridgeport, CT |  |  |  |
Description of property sale | In December 2008, the Company sold property it owned in Bridgeport, Connecticut to B&E Juices, Inc. for $2.5 million. The property consists of approximately four acres of land and 48,000 sq. feet of warehouse space. The property was the site of the original Acme United scissor factory which opened in 1887 and was closed in 1996. |  |  |
Proceeds from sale of assets | 2,500,000 us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = ACU_SignificantAcquisitionsAndDisposalsTransactionBMember |  |  |
Mortgage receivable from sale of property | 2,000,000 us-gaap_LoansReceivableCommercialMortgage / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = ACU_SignificantAcquisitionsAndDisposalsTransactionBMember |  |  |
Undiscounted environmental remediation liability | 1,800,000 us-gaap_EnvironmentalExitCostsAssetsPreviouslyDisposedLiabilityForRemediation / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = ACU_SignificantAcquisitionsAndDisposalsTransactionBMember |  |  |
Accrual for environmental remediation and monitoring |  |  | 6,000 us-gaap_AccrualForEnvironmentalLossContingencies / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = ACU_SignificantAcquisitionsAndDisposalsTransactionBMember | 39,000 us-gaap_AccrualForEnvironmentalLossContingencies / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = ACU_SignificantAcquisitionsAndDisposalsTransactionBMember
Accrual for environmental remediation and monitoring, current |  |  | 6,000 us-gaap_AccruedEnvironmentalLossContingenciesCurrent / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = ACU_SignificantAcquisitionsAndDisposalsTransactionBMember |
Fremont, NC |  |  |  |
Proceeds from sale of assets |  | 850,000 us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = ACU_SignificantAcquisitionsAndDisposalsTransactionAMember |  |
Undiscounted environmental remediation liability |  | 300,000 us-gaap_EnvironmentalExitCostsAssetsPreviouslyDisposedLiabilityForRemediation / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = ACU_SignificantAcquisitionsAndDisposalsTransactionAMember |  |
Accrual for environmental remediation and monitoring |  |  | $ 260,000 us-gaap_AccrualForEnvironmentalLossContingencies / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = ACU_SignificantAcquisitionsAndDisposalsTransactionAMember | $ 0 us-gaap_AccrualForEnvironmentalLossContingencies / us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis = ACU_SignificantAcquisitionsAndDisposalsTransactionAMember
Minimum environmental remediation monitoring period (in years) |  | 5 years |  |

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