CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (unaudited)
Net sales	$ 3,569,718	$ 3,667,276	$ 11,566,176	$ 11,075,620
Cost of sales	2,864,274	3,352,962	9,034,858	9,238,287
Gross profit	705,444	314,314	2,531,318	1,837,333
Selling, general and administrative	716,361	662,675	2,205,739	2,145,055
(Loss) income from operations	(10,917)	(348,361)	325,579	(307,722)
Other (expense) income	(219)	185	1,237	21,063
Interest expense	(50,405)	(69,328)	(159,885)	(218,447)
Total other expense, net	(50,624)	(69,143)	(158,648)	(197,384)
(Loss) income before income taxes	(61,541)	(417,504)	166,931	(505,106)
Income tax (benefit) expense	(13,369)	(97,734)	60,573	(115,092)
Net (loss) income	(48,172)	(319,770)	106,358	(390,014)
Other comprehensive income (loss), before tax:
Foreign currency translation adjustments	1,252	9	151	(329)
Other comprehensive income (loss), net of tax	1,252	9	151	(329)
Comprehensive (loss) income	$ (46,920)	$ (319,761)	$ 106,509	$ (390,343)
Net (loss) income per share basic	$ 0.00	$ (0.01)	$ 0.00	$ (0.01)
Net (loss) income per share diluted	$ 0.00	$ (0.01)	$ 0.00	$ (0.01)
Weighted average number of shares outstanding:
Basic	29,498,662	29,254,594	29,430,206	29,254,230
Diluted weighted average shares	29,498,662	29,254,594	31,021,384	29,254,230