Consolidated Statements of Income (USD $)	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Consolidated Statements of Income
Net sales	$ 7,216,324	$ 7,055,428
Cost of sales	4,648,752	4,474,359
Gross profit	2,567,572	2,581,069
Selling, general, and administrative expenses	2,251,629	2,379,369
Research and development expenses	216,827	314,823
Operating income (loss)	99,116	(113,123)
Other income (expense):
Interest income	2,321	3
Interest expense	(48,293)	(59,913)
Other income, net	3,342	4,524
Net other income (expense)	(42,630)	(55,386)
Income (loss) before income taxes	56,486	(168,509)
Income tax benefit (provision)	(15,563)	60,725
Net income (loss)	$ 40,923	$ (107,784)
Basic and diluted net income (loss) per common share	$ 0.02	$ (0.04)
Weighted-average common shares outstanding:
Basic	2,520,389	2,518,904
Diluted	2,523,472	2,518,904