Note 6 - Disaggregated Revenues and Segment Information (Tables)

6 Months Ended

Sep. 30, 2025

Notes Tables

Revenue from External Customers by Geographic Areas [Table Text Block]

	Three months Ended September 30,
	2025		2024
Net Revenue in the US
Chemical	$	178,652	$	199,836
Electronics		482,063		346,409
Engineering		95,527		197,891
		756,242		744,136
Net Revenue outside the US
Chemical	$	131,256	$	95,900
Electronics		-		-
Engineering		-		-
		131,256		95,900
Total Revenues	$	887,498	$	840,036

	Six Months Ended September 30,
	2025		2024
Net Revenue in the US
Chemical	$	377,297	$	401,213
Electronics		996,745		757,575
Engineering		219,460		324,912
		1,593,502		1,483,700
Net Revenue outside the US
Chemical		267,671		214,181
Electronics		-		-
Engineering		-		-
		267,671		214,181
Total Revenues	$	1,861,173	$	1,697,881