Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2023	Apr. 30, 2022
REVENUES:
Revenues	$ 75,182	$ 71,517
COSTS AND EXPENSES:
Marketing and advertising	5,246	5,117
General, administrative and other	19,979	13,876
Total costs and expenses	66,528	55,388
OPERATING INCOME	8,654	16,129
OTHER INCOME (EXPENSE):
Interest expense	(2,743)	(2,689)
Forgiveness of debt	0	2,001
Gain on sale of airplanes	410	75
Gain on sale of building	69	0
Other	137	0
Total other expense	(2,127)	(613)
INCOME BEFORE INCOME TAXES	6,527	15,516
PROVISION FOR INCOME TAXES
Provision for income taxes	1,714	3,102
Deferred income tax	297	174
NET INCOME	4,516	12,240
Net income attributable to noncontrolling interest in BHCMC, LLC	0	(1,872)
NET INCOME ATTRIBUTABLE TO BUTLER NATIONAL CORPORATION	$ 4,516	$ 10,368
BASIC EARNINGS PER COMMON SHARE ATTRIBUTABLE TO BUTLER NATIONAL CORPORATION (in dollars per share)	$ 0.06	$ 0.14
WEIGHTED AVERAGE SHARES USED IN PER SHARE CALCULATION (in shares)	76,456,631	75,340,131
DILUTED EARNINGS PER COMMON SHARE ATTRIBUTABLE TO BUTLER NATIONAL CORPORATION (in dollars per share)	$ 0.06	$ 0.14
WEIGHTED AVERAGE SHARES USED IN PER SHARE CALCULATION (in shares)	76,456,631	75,340,131
Professional Services [Member]
REVENUES:
Revenues	$ 38,041	$ 37,191
COSTS AND EXPENSES:
Cost of services and products	15,449	13,961
Aerospace Products [Member]
REVENUES:
Revenues	37,141	34,326
COSTS AND EXPENSES:
Cost of services and products	$ 25,854	$ 22,434