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Note 18 - Subsequent Events (Details Textual) (Revolving Credit Facility [Member], USD $)
0 Months Ended
Apr. 02, 2015
Apr. 02, 2014
Mar. 31, 2015
Mar. 31, 2014
Line of Credit Facility, Maximum Borrowing Capacity     $ 7,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity  
Long-term Line of Credit     5,000,000us-gaap_LineOfCredit 0us-gaap_LineOfCredit
Subsequent Event [Member] | Standby Letters of Credit [Member]
       
Long-term Line of Credit 500,000us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_StandbyLettersOfCreditMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
     
Subsequent Event [Member] | London Interbank Offered Rate (LIBOR) [Member]
       
Debt Instrument, Basis Spread on Variable Rate 1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
     
Subsequent Event [Member]
       
Line of Credit Facility, Maximum Borrowing Capacity 20,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
     
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.15%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
     
Tangible Net Worth   $ 22,000,000airt_TangibleNetWorth
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
   
Minimum Fixed Charge Coverage Ratio   1.35airt_MinimumFixedChargeCoverageRatio
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
   
Minimum Asset Coverage Ratio   1.75airt_MinimumAssetCoverageRatio
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
   
Leverage Ratio   3.5airt_LeverageRatio
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember