Note 7 - Segment Information (Details) - Schedule of Segment Reporting Information, by Segment - USD ($)	3 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting Information [Line Items]
Net sales	$ 5,845,919	$ 3,129,076
Cost of sales	4,030,624	2,008,859
Gross margin	1,815,295	1,120,217
Engineering, research, and development	492,132	483,896
Selling, general and administrative	865,688	879,193
Amortization of debt discount	0	30,874
Amortization of deferred financing costs	1,357	27,080
Change in fair value of common stock warrants	(67,760)	133,881
Interest (income) expense, net	29,634	62,480
Total expenses	1,321,051	1,617,404
Income (loss) before income taxes	494,244	(497,187)
Avionics Government [Member]
Segment Reporting Information [Line Items]
Net sales	5,261,319	2,520,723
Cost of sales	3,561,594	1,514,415
Gross margin	1,699,725	1,006,308
Avionics Commercial [Member]
Segment Reporting Information [Line Items]
Net sales	584,600	608,353
Cost of sales	469,030	494,444
Gross margin	115,570	113,909
Avionics Total [Member]
Segment Reporting Information [Line Items]
Net sales	5,845,919	3,129,076
Cost of sales	4,030,624	2,008,859
Gross margin	1,815,295	1,120,217
Engineering, research, and development	492,132	483,896
Selling, general and administrative	360,629	292,383
Amortization of debt discount		0
Amortization of deferred financing costs	0	0
Change in fair value of common stock warrants	0	0
Interest (income) expense, net	0	0
Total expenses	852,761	776,279
Income (loss) before income taxes	962,534	343,938
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Net sales	0	0
Cost of sales	0	0
Gross margin	0	0
Engineering, research, and development	0	0
Selling, general and administrative	505,059	586,810
Amortization of debt discount		30,874
Amortization of deferred financing costs	1,357	27,080
Change in fair value of common stock warrants	(67,760)	133,881
Interest (income) expense, net	29,634	62,480
Total expenses	468,290	841,125
Income (loss) before income taxes	$ (468,290)	$ (841,125)