Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2023	Jan. 31, 2022
REVENUE:
Revenues from customers	$ 20,464	$ 17,618	$ 55,093	$ 54,012
COSTS AND EXPENSES:
Marketing and advertising	1,324	1,325	4,023	3,751
Employee benefits	642	565	1,891	1,686
Depreciation and amortization	782	699	2,309	2,106
General, administrative and other	3,353	2,082	8,096	6,038
Total costs and expenses	17,079	13,216	46,081	40,845
OPERATING INCOME	3,385	4,402	9,012	13,167
OTHER EXPENSE:
Interest expense	(677)	(725)	(2,107)	(1,979)
Total other expense	(677)	(725)	(2,038)	97
INCOME BEFORE INCOME TAXES	2,708	3,677	6,974	13,264
Forgiveness of debt			0	(2,001)
Gain on sale of airplane			0	75
Gain on sale of building			69	0
PROVISION FOR INCOME TAXES
Provision for income taxes	731	993	1,603	2,418
NET INCOME	$ 1,977	$ 2,684	$ 5,091	$ 10,612
BASIC EARNINGS PER COMMON SHARE (in dollars per share)	$ 0.03	$ 0.04	$ 0.07	$ 0.12
WEIGHTED AVERAGE SHARES USED IN PER SHARE CALCULATION (in shares)	76,663,867	75,343,068	76,633,871	75,357,966
DILUTED EARNINGS PER COMMON SHARE (in dollars per share)	$ 0.03	$ 0.04	$ 0.07	$ 0.12
WEIGHTED AVERAGE SHARES USED IN PER SHARE CALCULATION (in shares)	76,663,867	75,343,068	76,633,871	75,357,966
Deferred income tax			$ 280	$ 234
Net income attributable to noncontrolling interest in BHCMC, LLC			0	(1,872)
NET INCOME ATTRIBUTABLE TO BUTLER NATIONAL CORPORATION			5,091	8,740
Professional Services [Member]
REVENUE:
Revenues from customers	$ 9,574	$ 8,902	28,280	27,460
COSTS AND EXPENSES:
Cost of services and products	3,789	3,298	11,164	10,078
Aerospace Products [Member]
REVENUE:
Revenues from customers	10,890	8,716	26,813	26,552
COSTS AND EXPENSES:
Cost of services and products	$ 7,189	$ 5,247	$ 18,598	$ 17,186