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Short- and Long-Term Obligations - Narrative (Details) (USD $) | 3 Months Ended |  |
--- | --- | --- | ---
Apr. 04, 2015 | Jan. 03, 2015 | Aug. 03, 2012
Debt Instrument [Line Items] |  |  |
Weighted average interest rate for long-term obligations (in hundredths) | 2.22%us-gaap_LongtermDebtWeightedAverageInterestRate |  |
Total short- and long-term debt | $ 30,750,000 us-gaap_LongTermDebt | $ 25,861,000 us-gaap_LongTermDebt |
Line of Credit Facility, Maximum Unrestricted Domestic Cash | 25,000,000 kai_LineofCreditFacilityMaximumRestrictedDomesticCash |  |
Revolving Credit Facility [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Term of unsecured revolving credit facility | 5 years |  |
Borrowing capacity available under committed portion |  |  | 100,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember
Additional borrowing capacity |  |  | 50,000,000 kai_LineOfCreditFacilityAdditionalBorrowingCapacity / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember
Maturity date | Nov. 01, 2018 |  |
Total short- and long-term debt | 25,000,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember | 20,000,000 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |
Maximum consolidated leverage ratio | 3.5 kai_MaximumConsolidatedLeverageRatio / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |  |
Minimum consolidated interest coverage ratio | 3 kai_MinimumConsolidatedInterestChargeCoverageRatio / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |  |
Remaining Borrowing Capacity | 73,690,000 us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |  |
Face amount of debt | $ 100,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember |  |
Revolving Credit Facility [Member] | Federal Funds Rate [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate | federal funds rate |  |
Basis spread on variable rate (in hundredths) | 0.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_VariableRateAxis = kai_FederalFundsRateMember |  |
Revolving Credit Facility [Member] | Federal Funds Rate [Member] | Minimum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate (in hundredths) | 0.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_VariableRateAxis = kai_FederalFundsRateMember |  |
Revolving Credit Facility [Member] | Federal Funds Rate [Member] | Maximum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate (in hundredths) | 1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_VariableRateAxis = kai_FederalFundsRateMember |  |
Revolving Credit Facility [Member] | Prime Rate [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate | prime rate |  |
Revolving Credit Facility [Member] | Prime Rate [Member] | Minimum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate (in hundredths) | 0.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_VariableRateAxis = us-gaap_PrimeRateMember |  |
Revolving Credit Facility [Member] | Prime Rate [Member] | Maximum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate (in hundredths) | 1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_VariableRateAxis = us-gaap_PrimeRateMember |  |
Revolving Credit Facility [Member] | Eurocurrency Rate [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate | Eurocurrency rate |  |
Basis spread on variable rate (in hundredths) | 0.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_VariableRateAxis = kai_EurocurrencyRateMember |  |
Revolving Credit Facility [Member] | Eurocurrency Rate [Member] | Minimum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate (in hundredths) | 0.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_VariableRateAxis = kai_EurocurrencyRateMember |  |
Revolving Credit Facility [Member] | Eurocurrency Rate [Member] | Maximum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate (in hundredths) | 1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_VariableRateAxis = kai_EurocurrencyRateMember |  |
Revolving Credit Facility [Member] | Eurocurrency Rate Two [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate | Eurocurrency rate |  |
Revolving Credit Facility [Member] | Eurocurrency Rate Two [Member] | Minimum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate (in hundredths) | 1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_VariableRateAxis = kai_EurocurrencyRateTwoMember |  |
Revolving Credit Facility [Member] | Eurocurrency Rate Two [Member] | Maximum [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Basis spread on variable rate (in hundredths) | 2.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_VariableRateAxis = kai_EurocurrencyRateTwoMember |  |

X
- Definition The additional amount available over and above the maximum borrowing capacity under the credit facility. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The maximum amount of unrestricted U.S. cash that can be netted against total debt. + References No definition available. + Details
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X
- Definition The maximum consolidated leverage ratio under the negative covenants of the credit facility. + References No definition available. + Details
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X
- Definition The minimum consolidated interest charge coverage ratio (calculated as income before interest and taxes, divided by interest) to be in compliance with the financial covenant under an existing debt agreement. + References No definition available. + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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X
- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 + Details
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Balance Type: | credit
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X
- Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 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 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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Balance Type: | credit
Period Type: | instant

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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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Period Type: | instant

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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 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 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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Period Type: | instant

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- Definition Weighted average interest rate of long-term debt outstanding. + References No definition available. + Details
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