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Note 6 - Employee Benefit and Savings Plan (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Note 6 - Employee Benefit and Savings Plan (Details) [Line Items]      
Defined Contribution Plan, Employer Discretionary Contribution Amount (in Dollars) $ 0us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount $ 0us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount $ 0us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount
100% Matching [Member]      
Note 6 - Employee Benefit and Savings Plan (Details) [Line Items]      
Defined Contribution Plan, Employer Matching Contribution, Percent of Match 100.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch
/ us-gaap_DefinedContributionPlanTypeAxis
= tlf_OneHundredPercentMatchingMember		 100.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch
/ us-gaap_DefinedContributionPlanTypeAxis
= tlf_OneHundredPercentMatchingMember		 100.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch
/ us-gaap_DefinedContributionPlanTypeAxis
= tlf_OneHundredPercentMatchingMember
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay 3.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
/ us-gaap_DefinedContributionPlanTypeAxis
= tlf_OneHundredPercentMatchingMember		 3.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
/ us-gaap_DefinedContributionPlanTypeAxis
= tlf_OneHundredPercentMatchingMember		 3.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
/ us-gaap_DefinedContributionPlanTypeAxis
= tlf_OneHundredPercentMatchingMember
50% Matching [Member]      
Note 6 - Employee Benefit and Savings Plan (Details) [Line Items]      
Defined Contribution Plan, Employer Matching Contribution, Percent of Match 50.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch
/ us-gaap_DefinedContributionPlanTypeAxis
= tlf_FiftyPercentMatchingMember		 50.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch
/ us-gaap_DefinedContributionPlanTypeAxis
= tlf_FiftyPercentMatchingMember		 50.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch
/ us-gaap_DefinedContributionPlanTypeAxis
= tlf_FiftyPercentMatchingMember
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay 2.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
/ us-gaap_DefinedContributionPlanTypeAxis
= tlf_FiftyPercentMatchingMember		 2.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
/ us-gaap_DefinedContributionPlanTypeAxis
= tlf_FiftyPercentMatchingMember		 2.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
/ us-gaap_DefinedContributionPlanTypeAxis
= tlf_FiftyPercentMatchingMember