Note 4 - Net Earnings Per Share (As Restated) - Earnings Per Common Share - Earnings Per Common Share (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	[1]
Net Income Attributable to Air T, Inc. Stockholders	$ 1,220,037	$ 2,725,710	$ (3,447,332)	$ 5,783,630
Earnings (Loss) Per Share:
Basic (in dollars per share)	$ 0.60	$ 1.15	$ (1.60)	$ 2.44
Diluted (in dollars per share)	$ 0.60	$ 1.14	$ (1.60)	$ 2.41
Weighted Average Shares Outstanding:
Basic (in shares)	2,042,789	2,372,527	2,152,301	2,372,527
Diluted (in shares)	2,047,637	2,396,999	2,152,301	2,396,645
Scenario, Previously Reported [Member]
Net Income Attributable to Air T, Inc. Stockholders	$ 856,105	$ 2,971,340	$ (1,751,648)	$ 6,029,260
Earnings (Loss) Per Share:
Basic (in dollars per share)	$ 0.42	$ 1.25	$ (0.81)	$ 2.54
Diluted (in dollars per share)	$ 0.42	$ 1.24	$ (0.81)	$ 2.52

[1] Earnings per common share have been restated for the three and nine-month periods ended December 31, 2016 and 2015. See Note 1A.