Business Segments (Tables)

9 Months Ended

Jan. 31, 2022

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, 2022		Jan 31, 2021		Jan 31, 2022		Jan 31, 2021
Net revenue:
Security alarm products	$	4,377,000	$	3,876,000	$	13,180,000	$	11,039,000
Cable & wiring tools		498,000		551,000		1,553,000		1,596,000
Other products		179,000		206,000		519,000		692,000
Total net revenue	$	5,054,000	$	4,633,000	$	15,252,000	$	13,327,000
Income from operations:
Security alarm products	$	988,000	$	1,008,000	$	3,541,000	$	3,119,000
Cable & wiring tools		117,000		145,000		418,000		451,000
Other products		39,000		63,000		139,000		196,000
Total income from operations	$	1,144,000	$	1,216,000	$	4,098,000	$	3,766,000
Depreciation and amortization:
Security alarm products	$	42,000	$	37,000	$	117,000	$	98,000
Cable & wiring tools		31,000		31,000		92,000		92,000
Other products		18,000		19,000		60,000		47,000
Corporate general		15,000		21,000		50,000		60,000
Total depreciation and amortization	$	106,000	$	108,000	$	319,000	$	297,000
Capital expenditures:
Security alarm products	$	113,000	$	65,000	$	153,000	$	307,000
Cable & wiring tools		—		—		—		—
Other products		11,000		—		11,000		113,000
Corporate general		—		—		—		6,000
Total capital expenditures	$	124,000	$	65,000	$	164,000	$	426,000

	January 31, 2022		April 30, 2021
Identifiable assets:
Security alarm products	$	10,138,000	$	8,955,000
Cable & wiring tools		2,378,000		2,534,000
Other products		661,000		667,000
Corporate general		41,926,000		41,980,000
Total assets	$	55,103,000	$	54,136,000