Condensed Consolidated Statements of Income - USD ($)	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Condensed Consolidated Statements of Income
Net sales	$ 35,758,330	$ 30,411,757
Cost of sales	24,249,832	20,057,614
Gross profit	11,508,498	10,354,143
Selling, general, and administrative expenses	12,101,539	10,978,606
Research and development expenses	1,081,373	1,070,383
Operating loss	(1,674,414)	(1,694,846)
Other income (expense):
Interest income	508	2,885
Interest expense	(277,630)	(289,149)
Other income, net	85,141	14,298
Total other expense	(191,981)	(271,966)
Loss before income tax benefit	(1,866,395)	(1,966,812)
Income tax (provision) benefit		64,551
Net loss	(1,866,395)	(1,902,261)
Deemed dividend on 8% convertible preferred stock	(1,944,223)
8% Convertible preferred stock dividend, in common stock	(466,269)	(372,291)
8% Convertible preferred stock dividend, in cash	(16,241)
Net loss applicable to common stockholders	$ (4,293,128)	$ (2,274,552)
Basic and diluted net loss per common share	$ (1.36)	$ (0.84)
Weighted-average basic and diluted common shares outstanding	3,152,425	2,706,424