Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
REVENUE:
Revenues from customers	$ 15,304	$ 17,745
COSTS AND EXPENSES:
Marketing and advertising	1,331	1,180
Employee benefits	614	575
Depreciation and amortization	771	702
General, administrative and other	2,513	1,929
Total costs and expenses	13,679	13,723
OPERATING INCOME	1,625	4,022
OTHER INCOME (EXPENSE):
Interest expense	(723)	(614)
Forgiveness of debt	0	(2,001)
Gain on sale of building	69	0
Total other income (expense)	(654)	1,387
INCOME BEFORE INCOME TAXES	971	5,409
PROVISION FOR INCOME TAXES
Provision for income taxes	260	631
Deferred income tax	280	0
NET INCOME	431	4,778
Net income attributable to noncontrolling interest in BHCMC, LLC	0	(1,872)
NET INCOME ATTRIBUTABLE TO BUTLER NATIONAL CORPORATION	$ 431	$ 2,906
BASIC EARNINGS PER COMMON SHARE (in dollars per share)	$ 0.01	$ 0.04
WEIGHTED AVERAGE SHARES USED IN PER SHARE CALCULATION (in shares)	76,456,284	75,366,749
DILUTED EARNINGS PER COMMON SHARE (in dollars per share)	$ 0.01	$ 0.04
WEIGHTED AVERAGE SHARES USED IN PER SHARE CALCULATION (in shares)	76,456,284	75,366,749
Professional Services [Member]
REVENUE:
Revenues from customers	$ 8,962	$ 9,326
COSTS AND EXPENSES:
Cost of services and products	3,623	3,325
Aerospace Products [Member]
REVENUE:
Revenues from customers	6,342	8,419
COSTS AND EXPENSES:
Cost of services and products	$ 4,827	$ 6,012