CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Net sales	$ 2,625,793	$ 4,236,519	$ 7,955,035	$ 14,654,917
Cost of sales	1,689,113	2,602,268	5,377,195	9,318,425
Gross margin	936,680	1,634,251	2,577,840	5,336,492
Operating expenses:
Selling, general and administrative	548,391	582,880	1,881,072	2,042,922
Litigation expenses	134,765	282,490	560,610	609,330
Legal damages	30,523	0	2,130,523	0
Engineering, research and development	546,691	615,007	1,691,631	1,783,655
Total operating expenses	1,260,370	1,480,377	6,263,836	4,435,907
(Loss) income from operations	(323,690)	153,874	(3,685,996)	900,585
Other income (expense):
Proceeds from life insurance	0	0	92,678	0
Amortization of deferred financing costs	(649)	(1,359)	(3,363)	(4,072)
Change in fair value of common stock warrants	5,000	37,000	95,000	288,203
Interest expense	(14,097)	(11,620)	(38,435)	(46,953)
Total other income (expense)	(9,746)	24,021	145,880	237,178
(Loss) income before income taxes	(333,436)	177,895	(3,540,116)	1,137,763
Income tax expense	0	36,382	0	313,886
Net (loss) income	(333,436)	141,513	(3,540,116)	823,877
Preferred stock dividends	(30,667)	0	(30,667)	0
Net (loss) income attributable to common shareholders	$ (364,103)	$ 141,513	$ (3,570,783)	$ 823,877
Basic (loss) income per common share (in Dollars per share)	$ (0.11)	$ 0.04	$ (1.10)	$ 0.25
Diluted (loss) income per common share (in Dollars per share)	$ (0.11)	$ 0.03	$ (1.10)	$ 0.23
Weighted average shares outstanding:
Basic (in Shares)	3,255,887	3,255,887	3,255,887	3,255,887
Diluted (in Shares)	3,255,887	3,265,135	3,255,887	3,266,532