Consolidated Statements of Income - USD ($)	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating Revenues:
Operating Revenues	$ 249,834,478	$ 194,519,345
Operating Expenses:
Overnight air cargo	65,099,491	63,049,619
Ground equipment sales	38,911,228	41,567,109
Ground support services	30,376,988	30,135,613
Commercial jet engines and parts	60,948,561	20,502,205
Printing equipment and maintenance	350,116	2,975,999
Research and development		195,653
General and administrative	38,376,113	29,138,534
Depreciation and amortization	7,686,070	2,428,732
Impairment on property and equipment	34,504	250,126
(Gain) loss on sale of property and equipment	(13,298)	30,232
	241,769,773	190,273,822
Operating Income	8,064,705	4,245,523
Non-operating Income (Expense):
Gain on sale of marketable securities	81,388	93,066
Foreign currency loss, net	(113,528)	(228,714)
Other-than-temporary impairment loss on investments	(2,000,000)	(1,559,972)
Other investment income (loss), net	(373,060)	121,860
Interest expense, net	(3,427,102)	(1,724,771)
Gain on asset retirement obligation		562,500
Bargain purchase acquisition gain	1,983,777	501,880
Unrealized gain (loss) on interest rate swap	145,222	(66,706)
Unrealized gain on transition to equity method		721,585
Income (loss) from equity method investments	340,714	(14,644)
	(3,362,589)	(1,593,916)
Income Before Income Taxes	4,702,116	2,651,607
Income Taxes	1,502,184	195,000
Net Income	3,199,932	2,456,607
Net (Income) Loss Attributable to Non-controlling Interests	(1,859,937)	(179,498)
Net Income Attributable to Air T, Inc. Stockholders	$ 1,339,995	$ 2,277,109
Earnings Per Share:
Basic (in dollars per share)	$ 0.66	$ 1.11
Diluted (in dollars per share)	$ 0.66	$ 1.11
Weighted Average Shares Outstanding:
Basic (in shares)	2,034,749	2,042,806
Diluted (in shares)	2,039,892	2,047,685
Overnight Air Cargo [Member]
Operating Revenues:
Operating Revenues	$ 72,978,361	$ 72,845,353
Ground Equipment Sales [Member]
Operating Revenues:
Operating Revenues	47,152,125	50,004,507
Ground Support Services [Member]
Operating Revenues:
Operating Revenues	34,331,784	35,698,171
Commercial Jet Engines Inventory [Member]
Operating Revenues:
Operating Revenues	93,968,014	29,506,873
Printing Equipment and Maintenance [Member]
Operating Revenues:
Operating Revenues	654,617	6,144,403
Corporate and Other [Member]
Operating Revenues:
Operating Revenues	$ 749,577	$ 320,038