Net Earnings (Loss) Per Share - Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Earnings Per Share [Abstract]
Net Loss	$ (1,608)	$ (1,336)	$ (1,635)	$ (2,137)
Net (income) loss attributable to non-controlling interests	(1)	104	(505)	(528)
Net Loss Attributable to Air T, Inc. Stockholders	$ (1,609)	$ (1,232)	$ (2,140)	$ (2,665)
Loss per share:
Basic (in dollars per share)	$ (0.57)	$ (0.43)	$ (0.76)	$ (0.93)
Diluted (in dollars per share)	$ (0.57)	$ (0.43)	$ (0.76)	$ (0.93)
Antidilutive shares excluded from computation of loss per share (in shares)	0	4	0	4
Weighted Average Shares Outstanding:
Basic (in shares)	2,820	2,865	2,820	2,866
Diluted (in shares)	2,820	2,865	2,820	2,866