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Significant Accounting Policies (Details 2) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Jan. 03, 2015 | Dec. 28, 2013
Property and equipment |  |
Depreciation and amortization | $ 1,275 us-gaap_Depreciation | $ 1,289 us-gaap_Depreciation
Property plant and equipment, gross | 23,816 us-gaap_PropertyPlantAndEquipmentGross | 25,037 us-gaap_PropertyPlantAndEquipmentGross
Less accumulated depreciation and amortization | (12,055)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment | (13,613)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Property plant and equipment, net | 11,761 us-gaap_PropertyPlantAndEquipmentNet | 11,424 us-gaap_PropertyPlantAndEquipmentNet
Depreciation and amortization included in cost of revenues | 868 us-gaap_CostOfGoodsSoldDepreciationAndAmortization | 817 us-gaap_CostOfGoodsSoldDepreciationAndAmortization
Estimated amortization expense |  |
2014 | 80 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths |
2015 | 20 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo |
Land |  |
Property and equipment |  |
Property plant and equipment, gross | 1,140 us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_LandMember | 1,140 us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_LandMember
Buildings and improvements |  |
Property and equipment |  |
Property plant and equipment, gross | 3,321 us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_BuildingAndBuildingImprovementsMember | 3,273 us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_BuildingAndBuildingImprovementsMember
Buildings and improvements | Minimum [Member] |  |
Property and equipment |  |
Estimated useful life | 18 years |
Buildings and improvements | Maximum [Member] |  |
Property and equipment |  |
Estimated useful life | 30 years |
Equipment (including computer software) |  |
Property and equipment |  |
Property plant and equipment, gross | 18,915 us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = arci_EquipmentAndComputerSoftwareMember | 20,561 us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = arci_EquipmentAndComputerSoftwareMember
Equipment (including computer software) | Minimum [Member] |  |
Property and equipment |  |
Estimated useful life | 3 years |
Equipment (including computer software) | Maximum [Member] |  |
Property and equipment |  |
Estimated useful life | 15 years |
Projects under construction |  |
Property and equipment |  |
Property plant and equipment, gross | 440 us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_ConstructionInProgressMember | 63 us-gaap_PropertyPlantAndEquipmentGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_ConstructionInProgressMember
Software development costs |  |
Property and equipment |  |
Costs capitalized | 143 us-gaap_CapitalizedComputerSoftwareAdditions / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_SoftwareDevelopmentMember | 99 us-gaap_CapitalizedComputerSoftwareAdditions / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_SoftwareDevelopmentMember
Amortization | 134 us-gaap_AdjustmentForAmortization / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_SoftwareDevelopmentMember | 145 us-gaap_AdjustmentForAmortization / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_SoftwareDevelopmentMember
Estimated amortization expense |  |
2014 | 97 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_SoftwareDevelopmentMember |
2015 | 61 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_SoftwareDevelopmentMember |
2016 | $ 25 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree / us-gaap_PropertyPlantAndEquipmentByTypeAxis = us-gaap_SoftwareDevelopmentMember |
Property and Equipment [Member] | Minimum [Member] |  |
Property and equipment |  |
Estimated useful life | 3 years |
Property and Equipment [Member] | Maximum [Member] |  |
Property and equipment |  |
Estimated useful life | 30 years |
URT [Member] |  |
Property and equipment |  |
Estimated useful life | 15 years |

X
- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 14 -Article 5 + Details
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- Definition The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives. + 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 + Details
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- Definition Additions made to capitalized computer software costs during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
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- Definition Depreciation of property, plant and equipment directly related to goods produced and sold during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2(a)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph a -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 8 -Article 7 + Details
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