Business Segments (Tables)

9 Months Ended

Jan. 31, 2025

Segment Reporting [Abstract]

Schedule of Financial Information Relating to Industry Segments

The following is financial information relating to industry segments:

	Three months		Three months		Nine months		Nine months
	ended		ended		ended		ended
	Jan 31, 2025		Jan 31, 2024		Jan 31, 2025		Jan 31, 2024
Net revenue:
Security alarm products	$	4,406,000	$	4,939,000	$	14,642,000	$	14,627,000
Cable & wiring tools		335,000		332,000		1,092,000		1,117,000
Other products		171,000		123,000		572,000		431,000
Total net revenue	$	4,912,000	$	5,394,000	$	16,306,000	$	16,175,000
Income from operations:
Security alarm products	$	1,073,000	$	1,373,000	$	3,994,000	$	4,226,000
Cable & wiring tools		81,000		105,000		304,000		323,000
Other products		42,000		40,000		155,000		125,000
Total income from operations	$	1,196,000	$	1,518,000	$	4,453,000	$	4,674,000
Depreciation and amortization:
Security alarm products	$	54,000	$	55,000	$	162,000	$	146,000
Cable & wiring tools		30,000		30,000		91,000		91,000
Other products		24,000		24,000		73,000		61,000
Corporate general		12,000		14,000		37,000		66,000
Total depreciation and amortization	$	120,000	$	123,000	$	363,000	$	364,000
Capital expenditures:
Security alarm products	$	51,000	$	—	$	196,000	$	224,000
Cable & wiring tools		—		—		—		—
Other products		—		20,000		21,000		20,000
Corporate general		—		—		142,000		19,000
Total capital expenditures	$	51,000	$	20,000	$	359,000	$	263,000

	January 31, 2025		April 30, 2024
Identifiable assets:
Security alarm products	$	14,892,000	$	15,263,000
Cable & wiring tools		1,966,000		2,082,000
Other products		870,000		859,000
Corporate general		45,996,000		42,576,000
Total assets	$	63,724,000	$	60,780,000