Export Sales and Major Customers (Tables)

9 Months Ended

Nov. 30, 2016

Export Sales and Major Customers [Abstract]

Summary of revenues from domestic and export sales to unaffiliated customers

	Power				Field Effect		Power
Geographic Region	Transistors		Hybrids		Transistors		MOSFETS		Totals
Europe and Australia	$	2,000	$	0	$	3,000	$	24,000	$	29,000
Canada and Latin America		4,000		0		0		0		4,000
Far East and Middle East		0		0		11,000		0		11,000
United States		350,000		1,358,000		82,000		311,000		2,101,000
Totals	$	356,000	$	1,358,000	$	96,000	$	335,000	$	2,145,000

	Power				Field Effect		Power
Geographic Region	Transistors		Hybrids		Transistors		MOSFETS		Totals
Europe and Australia	$	0	$	0	$	3,000	$	0	$	3,000
Canada and Latin America		9,000		0		1,000		40,000		50,000
Far East and Middle East		15,000		5,000		7,000		99,000		126,000
United States		259,000		698,000		138,000		645,000		1,740,000
Totals	$	283,000	$	703,000	$	149,000	$	784,000	$	1,919,000

	Power				Field Effect		Power
Geographic Region	Transistors		Hybrids		Transistors		MOSFETS		Totals
Europe and Australia	$	13,000	$	0	$	8,000	$	24,000	$	45,000
Canada and Latin America		13,000		0		0		0		13,000
Far East and Middle East		83,000		0		16,000		83,000		182,000
United States		799,000		3,941,000		251,000		602,000		5,593,000
Totals	$	908,000		3,941,000	$	275,000	$	709,000	$	5,833,000

	Power				Field Effect		Power
Geographic Region	Transistors		Hybrids		Transistors		MOSFETS		Totals
Europe and Australia	$	0	$	0	$	12,000	$	0	$	12,000
Canada and Latin America		18,000		0		25,000		40,000		83,000
Far East and Middle East		19,000		5,000		36,000		245,000		305,000
United States		965,000		3,023,000		422,000		1,704,000		6,114,000
Totals	$	1,002,000	$	3,028,000	$	495,000	$	1,989,000	$	6,514,000

Summary of percentage of sales from major customer

Customer	% of Sales
Raytheon Company		74	%
United States Government		12	%
		86	%

Customer	% of Sales
Raytheon Company		54	%
United States Government		10	%
		64	%

Customer	% of Sales
Raytheon Company		68	%
United States Government		11	%
		79	%

Customer	% of Sales
Raytheon Company		51	%
United States Government		12	%
		63	%