Cover Page - USD ($)	12 Months Ended
	Mar. 31, 2021	May 31, 2021	Sep. 30, 2020
Document Information
Document Type	10-K
Document Annual Report	true
Current Fiscal Year End Date	--03-31
Document Period End Date	Mar. 31, 2021
Document Transition Report	false
Entity File Number	001-35476
Entity Registrant Name	Air T, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	52-1206400
Entity Address, Street	5930 Balsom Ridge Road
Entity Address, City	Denver
Entity Address, State	NC
Entity Address, Postal Zip Code	28037
City Area Code	828
Local Phone Number	464 – 8741
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 11,799,796
Entity Common Stock, Shares Outstanding (in shares)		2,881,853
Entity Central Index Key	0000353184
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false
Common Stock
Document Information
Title of each class	Common Stock
Trading Symbol(s)	AIRT
Name of each exchange on which registered	NASDAQ
Alpha Income Preferred Securities
Document Information
Title of each class	Alpha Income Preferred Securities (also referred to as 8% Cumulative Capital Securities) ("AIP")*
Trading Symbol(s)	AIRTP
Name of each exchange on which registered	NASDAQ
Warrant
Document Information
Title of each class	Warrant to Purchase AIP*
Trading Symbol(s)	AIRTW
Name of each exchange on which registered	NASDAQ