CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Net sales	$ 16,508,678	$ 13,540,600
Cost of sales	10,068,236	7,218,765
Gross margin	6,440,442	6,321,835
Operating expenses:
Selling, general and administrative	2,969,956	2,901,758
Engineering, research and development	2,794,478	3,256,306
Total operating expenses	5,764,434	6,158,064
Income from operations	676,008	163,771
Other income (expense):
Amortization of debt discount	(53,570)	(52,837)
Amortization of debt expense	(108,321)	(60,178)
Change in fair value of common stock warrants	10,847	(84,481)
Gain on sales of capital asset	500	3,600
Proceeds from life insurance policy	300,029
Interest income	616	549
Interest expense	(367,410)	(248,800)
Interest expense - related parties	(31,964)	(28,036)
Total other expense	(249,273)	(470,183)
Income (loss) before income taxes	426,735	(306,412)
Provision (benefit) for income taxes	355,719	(179,360)
Net income (loss)	$ 71,016	$ (127,052)
Basic income (loss) per common share (in Dollars per share)	$ 0.03	$ (0.05)
Diluted income (loss) per common share (in Dollars per share)	$ 0.02	$ (0.05)
Weighted average number of shares outstanding
Basic (in Shares)	2,657,279	2,626,163
Diluted (in Shares)	2,717,820	2,626,163