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Note 11 - Unrecognized Compensation Expense for Non-vested Restricted Stock Awards (Details) (Details) - Restricted Stock [Member] | Dec. 31, 2015 USD ($)
--- | ---
2016 | $ 155,009
2017 | 155,009
2018 | 87,191
2019 | $ 9,688

X
- Definition Unrecognized cost of unvested share-based compensation awards due during the remainder of the fiscal year. + References No definition available. + Details
Name: | tlf_EmployeeServiceShareBasedCompensationNonvestedAwardsCompensationCostNotYetRecognizedRemainderOfFiscalYear
Namespace Prefix: | tlf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Unrecognized cost of unvested share-based compensation awards due in three years. + References No definition available. + Details
Name: | tlf_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedDueInThreeYears
Namespace Prefix: | tlf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Unrecognized cost of unvested share-based compensation awards. + References No definition available. + Details
Name: | tlf_EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostNotYetRecognizedDueInFourYears
Namespace Prefix: | tlf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Unrecognized cost of unvested share-based compensation awards due in two years. + References No definition available. + Details
Name: | tlf_EmployeeServiceSharebasedCompensationNonvestedAwardsCompensationCostNotYetRecognizedDueInTwoYears
Namespace Prefix: | tlf_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_RestrictedStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |