Note 8 - Segment Information (Details) - Schedule of Segment Reporting Information, by Segment (USD $)	3 Months Ended		6 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Reporting Information [Line Items]
Net sales	$ 4,034,581	$ 2,394,950	$ 7,234,556	$ 3,572,238
Cost of Sales	2,758,832	1,792,527	4,772,649	2,686,121
Gross Margin	1,275,749	602,423	2,461,907	886,117
Engineering, research, and development	448,572	548,800	928,949	1,127,404
Selling, general and administrative	671,410	686,346	1,324,660	1,340,234
Amortization of debt discount	25,600	31,009	48,587	44,401
Amortization of deferred financing costs	27,080	56,711	54,160	83,791
Loss on extinguishment of debt	0	0	26,600	0
Financing costs	0	26,477	0	26,477
Change in fair value of common stock warrants	67,345	337	42,773	(249,057)
Interest (income) expense, net	97,356	131,019	201,433	223,487
Total expenses	1,337,363	1,480,699	2,627,162	2,596,737
Income (loss) before income taxes	(61,614)	(878,276)	(165,255)	(1,710,620)
Avionics Gov't [Member]
Segment Reporting Information [Line Items]
Net sales	3,453,919	1,847,545	6,256,761	2,397,509
Cost of Sales	2,419,505	1,296,733	4,081,751	1,571,288
Gross Margin	1,034,414	550,812	2,175,010	826,221
Engineering, research, and development	0	0	0	0
Selling, general and administrative	0	0	0	0
Amortization of debt discount	0	0	0	0
Amortization of deferred financing costs	0	0	0	0
Loss on extinguishment of debt			0
Financing costs		0		0
Change in fair value of common stock warrants	0	0	0	0
Interest (income) expense, net	0	0	0	0
Total expenses	0	0	0	0
Income (loss) before income taxes	0	0	0	0
Avionics Comm'l. [Member]
Segment Reporting Information [Line Items]
Net sales	580,662	547,405	977,795	1,174,729
Cost of Sales	339,327	495,794	690,898	1,114,833
Gross Margin	241,335	51,611	286,897	59,896
Engineering, research, and development	0	0	0	0
Selling, general and administrative	0	0	0	0
Amortization of debt discount	0	0	0	0
Amortization of deferred financing costs	0	0	0	0
Loss on extinguishment of debt			0
Financing costs		0		0
Change in fair value of common stock warrants	0	0	0	0
Interest (income) expense, net	0	0	0	0
Total expenses	0	0	0	0
Income (loss) before income taxes	0	0	0	0
Avionics Total [Member]
Segment Reporting Information [Line Items]
Net sales	4,034,581	2,394,950	7,234,556	3,572,238
Cost of Sales	2,758,832	1,792,527	4,772,649	2,686,121
Gross Margin	1,275,749	602,423	2,461,907	886,117
Engineering, research, and development	448,572	548,800	928,949	1,127,404
Selling, general and administrative	293,632	310,147	557,777	627,137
Amortization of debt discount	0	0	0	0
Amortization of deferred financing costs	0	0	0	0
Loss on extinguishment of debt			0
Financing costs		0		0
Change in fair value of common stock warrants	0	0	0	0
Interest (income) expense, net	0	0	0	0
Total expenses	742,204	858,947	1,486,726	1,754,541
Income (loss) before income taxes	533,545	(256,524)	975,181	(868,424)
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Net sales	0	0	0	0
Cost of Sales	0	0	0	0
Gross Margin	0	0	0	0
Engineering, research, and development	0	0	0	0
Selling, general and administrative	377,778	376,199	766,883	713,097
Amortization of debt discount	25,600	31,009	48,587	44,401
Amortization of deferred financing costs	27,080	56,711	54,160	83,791
Loss on extinguishment of debt			26,600
Financing costs		26,477		26,477
Change in fair value of common stock warrants	67,345	337	42,773	(249,057)
Interest (income) expense, net	97,356	131,019	201,433	223,487
Total expenses	595,159	621,752	1,140,436	842,196
Income (loss) before income taxes	$ (595,159)	$ (621,752)	$ (1,140,436)	$ (842,196)