CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Net sales	$ 3,074,076	$ 3,621,185	$ 7,408,344	$ 7,720,008
Cost of sales	2,660,558	2,526,085	5,885,325	5,572,384
Gross profit	413,518	1,095,100	1,523,019	2,147,624
Selling, general and administrative	740,967	751,037	1,482,380	1,481,502
(Loss) income from operations	(327,449)	344,063	40,639	666,122
Other income	1,448	4,275	20,878	7,015
Interest expense	(72,596)	(90,249)	(149,119)	(185,634)
Total other expense, net	(71,148)	(85,974)	(128,241)	(178,619)
(Loss) income before income taxes	(398,597)	258,089	(87,602)	487,503
Income tax (benefit) expense	(107,576)	77,374	(17,358)	142,403
Net (loss) income	(291,021)	180,715	(70,244)	345,100
Other comprehensive (loss) income, before tax:
Foreign currency translation adjustments	(159)	(509)	(338)	(2,420)
Other comprehensive (loss) income, net of tax	(159)	(509)	(338)	(2,420)
Comprehensive (loss) income	$ (291,180)	$ 180,206	$ (70,582)	$ 342,680
Net (loss) income per share basic	$ (0.01)	$ 0.01	$ 0.00	$ 0.01
Net (loss) income per share diluted	$ (0.01)	$ 0.01	$ 0.00	$ 0.01
Weighted average number of shares outstanding - Basic	29,254,594	28,824,593	29,254,048	28,824,593
Weighted average number of shares outstanding - Diluted	29,254,594	30,150,485	29,254,048	30,054,055