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Note 5 - Notes Payable and Long-term Debt (Details) - Summary of Credit Agreement and Line of Credit Note (Parentheticals) (USD $) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013
Credit Agreement with JPMorgan Chase Bank, N.A. [Member] |  |
Note 5 - Notes Payable and Long-term Debt (Details) - Summary of Credit Agreement and Line of Credit Note (Parentheticals) [Line Items] |  |
Line of Credit Note term | 10 years | 10 years
Line of Credit Note monthly principal payments | $ 16,875 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = tlf_CreditAgreementWithJPMorganChaseBankNAMember | $ 16,875 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = tlf_CreditAgreementWithJPMorganChaseBankNAMember
Line of Credit Note interest | 7.10%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = tlf_CreditAgreementWithJPMorganChaseBankNAMember | 7.10%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_DebtInstrumentAxis = tlf_CreditAgreementWithJPMorganChaseBankNAMember
Line of Credit Note with JPMorgan Chase Bank, N.A.[Member] | London Interbank Offered Rate (LIBOR) [Member] |  |
Note 5 - Notes Payable and Long-term Debt (Details) - Summary of Credit Agreement and Line of Credit Note (Parentheticals) [Line Items] |  |
Line of Credit Note, Interest at LIBOR | 2.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = tlf_LineOfCreditNoteWithJPMorganChaseBankNAMember / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |
Line of Credit Note with JPMorgan Chase Bank, N.A.[Member] |  |
Note 5 - Notes Payable and Long-term Debt (Details) - Summary of Credit Agreement and Line of Credit Note (Parentheticals) [Line Items] |  |
Line of Credit Note, Principal Amount | $ 6,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_DebtInstrumentAxis = tlf_LineOfCreditNoteWithJPMorganChaseBankNAMember |

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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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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + 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)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of the required periodic payments applied to principal. + 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 210.5-02.22) -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 22 -Article 5 + Details
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- 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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