Note 10 - Segment Information (Tables)

3 Months Ended

Jun. 30, 2017

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

The table below presents information about reportable segments within the avionics business for the three month periods ending June 30, 2017 and 2016:

Three Months Ended  June 30, 2017	Avionics Government		Avionics Commercial		Avionics Total		Corporate Items			Total
Net sales	$	2,972,326	$	569,751	$	3,542,077	$	-		$	3,542,077
Cost of sales		1,815,153		485,634		2,300,787		-			2,300,787
Gross margin		1,157,173		84,117		1,241,290		-			1,241,290
Engineering, research, and development						615,273		-			615,273
Selling, general and administrative						358,667		347,619			706,286
Litigation costs								382,512			382,512
Amortization of deferred financing costs						-		1,357			1,357
Change in fair value of common stock warrants						-		(95,000	)		(95,000	)
Proceeds from life insurance								(92,678	)		(92,678	)
Interest expense, net						-		9,631			9,631
Total expenses						973,940		553,441			1,527,381
Income (loss) before income taxes					$	267,350	$	(553,441	)	$	(286,091	)

Three Months Ended  June 30, 2016	Avionics Government		Avionics Commercial		Avionics Total		Corporate Items			Total
Net sales	$	4,871,620	$	470,749	$	5,342,369	$	-		$	5,342,369
Cost of sales		3,104,918		360,798		3,465,716		-			3,465,716
Gross margin		1,766,702		109,951		1,876,653		-			1,876,653
Engineering, research, and development						584,877		-			584,877
Selling, general and administrative						343,882		424,348			768,230
Litigation costs								143,514			143,514
Amortization of deferred financing costs						-		1,356			1,356
Change in fair value of common stock warrants						-		(217,203	)		(217,203	)
Interest expense, net						-		17,826			17,826
Total expenses						928,759		369,841			1,298,600
Income (loss) before income taxes					$	947,894	$	(369,841	)	$	578,053