CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Net sales	$ 4,236,519	$ 5,970,865	$ 14,654,917	$ 18,635,174
Cost of sales	2,602,268	3,936,108	9,318,425	12,541,656
Gross margin	1,634,251	2,034,757	5,336,492	6,093,518
Operating expenses:
Selling, general and administrative	865,370	767,923	2,652,252	2,517,487
Engineering, research and development	615,007	541,502	1,783,655	1,477,290
Total operating expenses	1,480,377	1,309,425	4,435,907	3,994,777
Income from operations	153,874	725,332	900,585	2,098,741
Other income (expense):
Amortization of deferred financing costs	(1,359)	(1,357)	(4,072)	(4,072)
Change in fair value of common stock warrants	37,000	(246,751)	288,203	(697,579)
Interest expense	(11,620)	(23,687)	(46,953)	(79,156)
Total other income (expense)	24,021	(271,795)	237,178	(780,807)
Income before income taxes	177,895	453,537	1,137,763	1,317,934
Income tax expense	36,382	226,951	313,886	612,816
Net income	$ 141,513	$ 226,586	$ 823,877	$ 705,118
Basic income (loss) per common share (in Dollars per share)	$ 0.04	$ 0.07	$ 0.25	$ 0.22
Diluted income per common share (in Dollars per share)	$ 0.03	$ 0.07	$ 0.23	$ 0.22
Weighted average shares outstanding:
Basic (in Shares)	3,255,887	3,256,887	3,255,887	3,256,887
Diluted (in Shares)	3,265,135	3,261,690	3,266,532	3,261,955