Consolidated Statements of Income - USD ($)	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Consolidated Statements of Income
Net sales	$ 30,411,757	$ 29,117,528
Cost of sales	20,057,614	20,048,069
Gross profit	10,354,143	9,069,459
Selling, general, and administrative expenses	10,978,606	9,229,405
Research and development expenses	1,070,383	926,954
Operating loss	(1,694,846)	(1,086,900)
Other income (expense):
Interest income	2,885	4,920
Interest expense	(289,149)	(330,842)
Other income, net	14,298	13,577
Total other expense	(271,966)	(312,345)
Loss before income tax benefit	(1,966,812)	(1,399,245)
Income tax (provision) benefit	64,551	(851,092)
Net loss	(1,902,261)	(2,250,337)
Deemed dividend on 8% convertible preferred stock		(2,858,887)
8% Convertible preferred stock dividend, in common stock	(372,291)
8% Convertible preferred stock dividend, in cash		(882)
Net loss applicable to common stockholders	$ (2,274,552)	$ (5,110,106)
Basic and diluted net loss per common share	$ (0.84)	$ (2.03)
Weighted-average basic and diluted common shares outstanding	2,706,424	2,520,723