Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2022	Oct. 31, 2021
REVENUE:
Revenues from customers	$ 19,326	$ 18,649	$ 34,629	$ 36,393
COSTS AND EXPENSES:
Marketing and advertising	1,368	1,246	2,699	2,426
Employee benefits	636	546	1,249	1,121
Depreciation and amortization	756	705	1,527	1,407
General, administrative and other	2,230	2,028	4,743	3,956
Total costs and expenses	15,324	13,906	29,002	27,628
OPERATING INCOME	4,002	4,743	5,627	8,765
OTHER INCOME (EXPENSE):
Interest expense	(707)	(640)	(1,430)	(1,254)
Gain on sale of airplane	0	75	0	75
Total other income (expense)	(707)	(565)	(1,361)	822
INCOME BEFORE INCOME TAXES	3,295	4,178	4,266	9,587
Forgiveness of debt			0	(2,001)
Gain on sale of building			69	0
PROVISION FOR INCOME TAXES
Provision for income taxes	612	794	872	1,425
Deferred income tax	0	234	280	234
NET INCOME	$ 2,683	$ 3,150	$ 3,114	$ 7,928
BASIC EARNINGS PER COMMON SHARE (in dollars per share)	$ 0.03	$ 0.04	$ 0.04	$ 0.08
WEIGHTED AVERAGE SHARES USED IN PER SHARE CALCULATION (in shares)	76,781,461	75,364,083	76,618,873	75,365,416
DILUTED EARNINGS PER COMMON SHARE (in dollars per share)	$ 0.03	$ 0.04	$ 0.04	$ 0.08
WEIGHTED AVERAGE SHARES USED IN PER SHARE CALCULATION (in shares)	76,781,461	75,364,083	76,618,873	75,365,416
Net income attributable to noncontrolling interest in BHCMC, LLC			$ 0	$ (1,872)
NET INCOME ATTRIBUTABLE TO BUTLER NATIONAL CORPORATION			3,114	6,056
Professional Services [Member]
REVENUE:
Revenues from customers	$ 9,745	$ 9,232	18,707	18,557
COSTS AND EXPENSES:
Cost of services and products	3,752	3,454	7,375	6,779
Aerospace Products [Member]
REVENUE:
Revenues from customers	9,581	9,417	15,922	17,836
COSTS AND EXPENSES:
Cost of services and products	$ 6,582	$ 5,927	$ 11,409	$ 11,939