CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($)	3 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME
Net sales	$ 4,644,805	$ 4,374,975
Cost of sales	3,109,412	3,092,116
Gross profit	1,535,393	1,282,859
Selling, general and administrative	888,178	804,207
Income from operations	647,215	478,652
Other income (expense)	746	(189)
Interest expense	(193,210)	(272,122)
Interest income	5	10
Total other expense, net	(192,459)	(272,301)
Income before income taxes	454,756	206,351
Income tax expense	9,453
Net income	445,303	206,351
Other comprehensive loss, before tax:
Foreign currency translation adjustments	(942)	(61)
Other comprehensive loss, before tax	(942)	(61)
Comprehensive income, net of tax	$ 444,361	$ 206,290
Net income per share (basic) (in dollars per share)	$ 0.02	$ 0.01
Net income per share (diluted) (in dollars per share)	$ 0.02	$ 0.01
Weighted average number of shares outstanding (basic) (in shares)	27,324,593	24,867,019
Weighted average number of shares outstanding (diluted) (in shares)	27,711,919	24,867,019