CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2025	Oct. 31, 2024
REVENUE:
Total revenue	$ 23,251	$ 21,360	$ 43,376	$ 41,189
COSTS AND EXPENSES:
Marketing and advertising	896	951	1,817	1,865
General, administrative and other	3,942	4,122	7,976	8,134
Total costs and expenses	16,174	16,506	31,632	32,799
OPERATING INCOME	7,077	4,854	11,744	8,390
OTHER INCOME (EXPENSE):
Interest expense	(501)	(538)	(1,025)	(1,103)
Gain on sale of airplanes	403	248	403	248
Gain on sale of building	1,477	261	1,477	261
Interest income	335	100	507	206
Total other income (expense)	1,714	71	1,362	(388)
INCOME BEFORE INCOME TAXES	8,791	4,925	13,106	8,002
PROVISION FOR INCOME TAXES
Provision for income taxes	2,797	1,329	3,427	2,160
NET INCOME	$ 5,994	$ 3,596	$ 9,679	$ 5,842
BASIC EARNINGS PER COMMON SHARE (in dollars per share)	$ 0.09	$ 0.05	$ 0.15	$ 0.09
WEIGHTED AVERAGE SHARES USED IN PER SHARE CALCULATION (in shares)	64,568,585	68,027,071	65,759,497	68,382,659
DILUTED EARNINGS PER COMMON SHARE (in dollars per share)	$ 0.09	$ 0.05	$ 0.15	$ 0.09
WEIGHTED AVERAGE SHARES USED IN PER SHARE CALCULATION (in shares)	64,568,585	68,027,071	65,759,497	68,382,659
Professional Services
REVENUE:
Total revenue	$ 9,212	$ 9,650	$ 18,023	$ 18,887
COSTS AND EXPENSES:
Cost of product and service sold	3,863	3,909	7,775	7,802
OTHER INCOME (EXPENSE):
Gain on sale of building			1,500
Aerospace Products
REVENUE:
Total revenue	14,039	11,710	25,353	22,302
COSTS AND EXPENSES:
Cost of product and service sold	$ 7,473	$ 7,524	$ 14,064	$ 14,998